Many users notice over time that operating system starts to work slower. Why is this happening? This is influenced by many factors. This and Windows errors , which become more and more numerous over time. This and unnecessary programs in the system, and clogged unnecessary files HDD.

Many people believe that reinstall the system- the fastest and reliable way solve all problems and computer freezes. This is often true. Yes, for users who use the computer for simple, everyday tasks, reinstalling the system will be the best option.

How often do you need to reinstall Windows?

There is no clear answer to this question. Some computers work for years without reinstalling the system. And some people start to slow down a lot after a few months. And reinstalling the system actually helps in many cases.

So why is Windows slower?

The main reason for reinstalling Windows is to slow down your computer. The reasons for the slowdown are quite simple.

-Programs in startup. New programs that you install very often end up in startup and can significantly slow down the speed of your computer. Many programs in startup also cause long loading time operating system. Very often, startup programs contain completely useless programs that only load the computer.

-Explorer services and extensions. Some programs install their components as system services, and this can significantly slow down the speed of your computer. Also, some programs are built into context menu Explorer, and in the case of unoptimized program code can cause severe “slowness” of the operating system.

-Antiviruses and protection systems, devouring system resources. Some users use antivirus products that their computer hardware cannot handle. This is where the system slows down. Bad for the operating room incorrect deletion antivirus products. After incorrectly removing “traces” antivirus program remain in the system and slow it down.

-Browser panels. You've probably noticed that when installing some programs, various elements and add-ons to the browser are installed. All kinds of Yandex, Mail, Bing toolbars and others. After some time, a whole set of various extensions and add-ons can accumulate on your computer, which slow down your computer.

-Incorrect installation and removal of programs. Incorrect installations also harm the Windows operating system. If errors occur during installation, files and registry entries that are not part of a complete program can significantly slow down the speed of the operating system.

How to prevent Windows from running slowly?

All you need is follow a few simple rules, which will allow you to keep the operating system “clean” for longer.

-Don't install programs you don't need. Do not install suspicious programs for the purpose of “trying it out”. And if you installed it, be sure to remove it later.

-Remove programs only through"Add or remove programs" item. Removing it manually can lead to errors. And when installing programs, carefully select the components to install. Do not allow programs to install unnecessary components that you do not need.

-Check your operating system periodically utilities for cleaning the system from garbage, for example the program CCleaner. But do not let this program or any similar ones hang in startup.

When should you reinstall Windows?

Most often, you need to reinstall Windows when it is actually easier and faster to reinstall the system than to find the cause of the computer failure. Some errors and glitches in the operating system are extremely difficult to find. It's easier to reinstall the system. But if you are a careful user and a lot of time has passed since last installation and the system works fine - there is no need to reinstall Windows.

In the process, you will format the local drive that contains the current version of Windows. Simply put, before installing a new system there, you will have to erase all old data from it. The contents of the remaining disks should remain unchanged. But it’s better to play it safe and first copy absolutely all data from your computer that you are afraid of losing to the cloud or to physical media.

If you have installed on your computer paid programs, do not forget to read in their documentation the rules for working with licenses when reinstalling Windows, otherwise you may lose them.

2. Create a boot disk or flash drive

If you want to install/reinstall licensed version Windows, make sure you have the appropriate activation key. Even if you are already using an activated system and just want to install the same version again, old key activation may come in handy again.

• If you already have a bootable USB flash drive or disk with the version of Windows that you are going to install, you can proceed to step 3. Otherwise, you need to download Windows image from the Internet and record it on any of the listed media according to the instructions given below.
• Decide on the version of Windows you will be installing and check that your computer meets its system requirements. This information can be found on the official Microsoft website or on the disk with your purchased Windows. Don't forget to also check that your computer supports the new version's bit depth: 32 or 64 bits. To be on the safe side, you can install a version with the same bit depth as your current version of Windows.
• To create bootable USB flash drive with any Windows image found on the Internet, you can use the program (with UEFI support) and proceed to step 3.

And below I will tell you how to create boot disk or a flash drive with an official system image using Windows 10 as an example.

3. Boot the system from a disk or flash drive

Now that you have physical media with the desired Windows image, you need to go into the special BIOS software environment and select a disk or flash drive here as the boot source.

Perhaps instead of the classic BIOS you will see a more modern graphical interface. Moreover, even in various older versions BIOS settings may vary. But in any case, the procedure will be approximately the same: go to the boot menu, select the desired media as the source and save the changes.

After this, the computer should boot from the selected disk or flash drive.

4. Run the installation wizard

If you did everything correctly, a wizard will appear on the screen Windows installations. Further actions do not exceed the complexity of the installation of an ordinary one office program. All you have to do is follow the system prompts and wait for the files to be unpacked. Unless you have to select a local disk to install the operating system and format it.

Also, be prepared to enter your activation key during the process. But if you are reinstalling Windows 10 that has already been activated on your computer, then you can skip the step with the key.

Once the installation is complete, your computer should boot into normal operating mode.

5. Install drivers

Modern Windows versions download drivers themselves. But if, after reinstalling the system, you notice that the video card, speakers, or anything else is not working correctly, you can use the driver autoload utility. For example, the free Driver Booster is suitable.

Having completed all of the above, you can get to work. The computer must be ready.

When using a computer for a long time, any user sooner or later becomes puzzled by the fact that the system is cluttered, residual files do not want to be deleted voluntarily, and the laptop boots up at the speed of a wounded snail. Also, some viruses, although treatable at first glance, still leave their tiny traces. Subsequently, it grows exponentially and affects the entire system completely. Therefore, the user begins to ask the pressing question: “How to reinstall Windows system 7?

Of course, to solve these problems, you can use the services of plugins or start using a new antivirus, but such a solution will be temporary, and in a few weeks the situation will not only repeat itself, but will also worsen. In addition, sometimes the computer simply leaves no choice, threateningly greeting you with a “blue screen of death” with farewell instructions.

Reinstalling the operating system in a specialized salon costs a lot, so today we will save a couple of thousand and learn how to reinstall the OS ourselves. But before you reinstall Windows 7, there are several steps you should take.

Preparing and saving data

How to properly reinstall Windows 7? In order to protect yourself from losing important files after reinstalling the system, it is worth spending a little time and saving on a flash drive or disk those documents that may be needed in the future.

For example, not everyone wants to lose their achieved results in their favorite game. You just need to find and save one small file, which is located in the AppData folder of the user. If a folder with this name is not displayed, you need to go to “Computer” - “Local Disk” - “Users” - “your name” and there click on “Arrange”, then select folder and search options in the drop-down menu.

And put the checkbox on “Show hidden folders and files”.

How to save favorites and links from the browser

• For Mozilla browser Firefox will need to go to “Local Drive” - “Users” - “Username” - “Favorites” and save the entire folder.
• To save data Google Chrome go to “Local Drive” - “Users” - “User Name” - “AppData” - “Local” - “Google” - “Chrome” and save the User Data folder.
• For Internet Explorer Just save the “Favorites” folder, located in “Local disk” - “Users” - “User name”.
• When working with Opera, we go to the well-known path to the AppData folder and then Opera, you only need to save the bookmarks.adr file.

Saving torrent files

To save torrent files, go to AppData, find the uTorrent folder there and copy it completely. After reinstalling the system, the saved folder must be placed in the same location. This also applies to saved games and bookmarks in browsers.

When all the necessary data, photographs and other necessities have been successfully saved, we begin reinstalling the OS to the beat of the drums.

How to properly reinstall Windows 7

If you have a disk with an operating system, then insert it into the drive, after which the automatic reinstallation of the OS should begin, although in 60% of cases this does not happen. What to do in such a situation to understand how to reinstall Windows 7? “BIOS” is a mystical word, upon hearing which many begin to get nervous. In fact, there is nothing wrong with the BIOS if you don’t touch anything unnecessary (and even in this case, all parameters can be restored). In order to get to your destination, you need:

• restart the computer;
• Press the del key 2-3 times until Windows screensaver. If the transition to the BIOS does not occur, simply repeat the procedure again.

So, if everything is done correctly, the following image should appear before your eyes:

Next we find First Boot Device and set the value on the CD-ROM. This means that when your computer starts, it will automatically load data from the disk first. It is very important after installing the software not to forget to return everything as it was, or the computer will continue to install the system forever (if you also forgot to remove the disk).

Press f10 to save changes. If all conditions have been met, the system will begin reinstalling.

The next window prompts us to select the language, date and set the time. We set some simple parameters, and feel free to click “next”, “install” and accept the license agreement.

type of instalation

• Upgrade - suitable only if the system is reinstalled for minor reasons. If the decision was made in connection with the “screen of death” or the computer was clearly malware, definitely choose the full installation.
• Full installation (custom) - reinstalls the OS literally from scratch, mercilessly destroying everything that can harm it.

Disk configuration

Here you have to choose which disk will appear as local, i.e. the one on which the software will be installed.

Logically speaking, the volume of the system disk should be within 35 GB, but not less. It’s worth considering that many of us like to save files using the “throw it on the desktop for now so as not to forget” principle. All documents, pictures, etc. that are located on the desktop are stored on the system drive, as well as files from the “Downloads” folder. Thus, when calculating the volume local disk you should be more generous.

Click “Next” and go have a snack, we have at least 45 minutes. During installation, the computer will reboot several times, which will kindly warn you. You shouldn’t interfere with him in this, unless unforeseen situations occur in the process, after 45-50 minutes new Windows 7 will be installed successfully.

The next step is the username and computer name. If at some point you need to change these settings, this can be done simply: “Start” - right-click on “Computer” - “Properties”. Find “Computer name, domain name and workgroup settings” and click “Change settings”.

It is not necessary to set a password, so you can skip this step by clicking “Next”.

You will also need to enter your product key. You can find it on the bottom of the laptop or on a special sticker on system unit(if you purchased the equipment along with a licensed disk).

If the software was installed from another disk, then the key should be indicated on the box. Well, if the system was installed illegally, you can skip this point and forget about this issue for about a month. After 30 days, the beautiful picture on your desktop will be replaced by a black screen, and some functions and devices may be disabled. If this doesn’t bother you, then you can safely work with the system further or be puzzled by searching for a suitable key on the Internet.

When choosing the type of update installation, it is best to use the recommended settings. If the system is not automatically updated, then sooner or later minor problems may arise in working with the most frequently used programs. The update eliminates minor bugs and optimizes the operation of the OS.

How to reinstall Windows 7 without a disk or from a flash drive

Sometimes it happens that there is no disk with Windows, or the CD-ROM is blind and categorically refuses to cooperate. Don't despair, there are no hopeless situations. There are several ways to install the system using other media. For example, you can reinstall Windows 7 from a flash drive.

Reinstalling the system using a flash drive

First, download the OS image to your computer. After that, install the Ultra Iso program or you can use Daemon Tools, the algorithm is approximately the same.

Next, take a flash drive or memory card, but it’s worth noting right away that the BIOS will not see any of the drives installed via the USB-3 connector, so be careful and use USB-2. Externally, the connectors do not differ; in some devices, USB-3 is marked in blue. If there is no identification mark, then everything is simple. We find in any search engine information about the characteristics of a laptop or computer and then information about which side the connectors we need are installed on.

In order to prepare a flash drive for further work, it must be formatted, even if there is nothing on it. Next we perform the following steps:

• In UltraIso, open the Windows 7 image that we have already downloaded (“File” - “Open” - select the program image).
• Find “Self-unloading” in top menu and select “Burn hard disk image”.
• In the window that opens, indicate the formatted flash drive.
• We confirm the check, and set the recording method to USB-HDD+.
• Click “Record”.
• We agree with the fact that all files will be erased from the flash drive (even though we formatted it, we still set it to “Yes”).
• Voila! If we see “Recording complete”, then the job is done and you can start reinstalling.
• We go to the BIOS in the known way described above, and in First Boot Device we select the recorded flash drive.

Reinstalling Windows 7 using an image recorded on a DVD disc

Another method will tell you how to reinstall Windows 7 via CD-ROM without a license disc.

Why DVD? Everything is elementary, a regular CD will not work for one simple reason - there is not enough space, and the OS image “weighs” about 3 GB.

If for these purposes you decide to use a DVD that already has something on it, then, as in the situation with a flash drive, you need to resort to formatting.

Now we open the already known UltraIso program, go to “File” - “Open” and find the downloaded Windows image.

Next, go to the “Tools” menu and click “Burn CD image”, in the window that appears, check the “Check” box, humbly accept the fact that everything on the disk will be destroyed and click “Burn”.

That's all, after the message “Recording complete” appears, our disk is ready. We think everyone has already guessed what to do next. That's right: go to the BIOS and select the recorded disk as First Boot Device.

How to go back from Windows 7 to XP

Sometimes it is difficult for users to master a new system, so for some it is easier to reinstall Windows 7 on XP. The installation procedure is not much different from that described earlier, with the exception of a few points:

1. After proceeding to the installation, the system prompts you to select which partition (that is, which disk) the OS will be installed on. In order to completely destroy a previously installed Windows 7, you need to select the appropriate partition. After this, there will be 4 formatting options to choose from, the only correct one of which is “Format partition in NTFS system" After this, the computer usually restarts and begins installing the system.
2. If there is a strong desire to install two operating systems on one computer or laptop at once, then, on the contrary, select the partition that is not occupied system files. This is usually drive D.

Reinstalling Windows 8 to 7

Despite the fact that most users rated the seventh version positively software from Microsoft, the “eight” received quite contradictory responses. Because newest version is fundamentally different from all previous ones, sometimes there is a desire to replace the OS.

In order to reinstall Windows 8 to 7, you will need to go into the BIOS and set the primary priority to the CD-ROM (how to do this was described earlier).

After that, save the changes and proceed to boot from disk or other media. Installation type when changing Windows 8 by 7 can only be " New installation", since the OS is different, there is no need to talk about any updates.

It is also necessary to delete all partitions, including hidden ones. After that, no longer thinking about how to reinstall Windows computer 7, do the rest:

• indicate the time, date and keyboard layout;
• agree to the terms, indicate the user name and computer name;
• enter the key, etc.

After installation (drivers)

As a rule, reinstalling Windows 7 on a laptop or computer is quite easy, but after the process of replacing the OS, many users have a number of questions. For example:

• "Why after installation new system Has the image quality deteriorated?
• “Why doesn’t my computer or laptop see the flash drive?”
• “Why has the sound gotten worse?” etc.

All this happens most often when the reinstallation was carried out by downloading the OS or purchasing a disc from someone else (you don’t have to think about how to reinstall a Windows 7 computer, but some “jambs” still pop up). In order to solve a number of similar problems, it is enough to download drivers from the manufacturer’s official website. Or pay attention to the drivers before reinstalling the system.

Let's look at it with an example. Let's say before you reinstall Asus Windows 7, the user was not puzzled by the issue of saving data from his laptop, or he simply did not have the opportunity to do so. What should I do?

It’s simple, just type in the search engine the model (the manufacturer’s company is enough) of the device and add the treasured phrase “Download drivers from the official website.” Then go to the link to the manufacturer’s website and indicate the full model of the laptop in the appropriate form. Next, you need to download all the presented drivers one by one and install them on the laptop one by one. There are no installation tricks, since the drivers install themselves where they should.

If for one reason or another the drivers have gone wild and are installed in the wrong place, you can go to the device manager and force them to update.

In order to get into the remote control, you can simply type “Device Manager” in the search bar that pops up when you click “Start”. Next, right-click on the driver that is marked with an exclamation mark. And select “Update drivers”, in the new window all that remains is to indicate that the required files must be searched on the computer itself and indicate the location where they were installed.

If all drivers are installed normally in the device manager, the image will improve and the screen resolution will increase to the required level.

Finally

The computer can “fly” at any moment, so it’s worth thinking about organizing backup storage for high-value files before reinstalling Windows 7. This way you can save a lot of time after installing the system, because it’s quite possible that even the most basic programs ( Word, etc.) will have to be searched and installed again.

Reinstalling Windows 7 on a laptop or computer is not difficult; even a novice user can cope with this task. The main thing is to approach the issue responsibly and spend an hour trying to save all useful information from the computer even before reinstalling the OS.

Sometimes users may notice that the computer starts to run slower after a while. Some of these users think it's standard problem and to fix it you need to reinstall Windows. Moreover, many are interested in how often this procedure needs to be performed, and such questions are more common than questions about the regularity of cleaning the computer.

Some users think that the simplest and in a fast way The solution to computer problems is to reinstall the operating system. In fact, even if we consider automatic installation operating system from the recovery image, then solving problems manually takes less time, so you should not resort to this method.

Why Windows is running slower

Very often, due to the fact that the system begins to slow down after installation, many users try to reinstall the operating system. In fact, your computer slows down for quite simple and common reasons.

If we consider a slow computer running Windows, then in almost all cases this is affected by applications located in autostart, which may be there great amount, and most of them are not needed there. These utilities slow down the system startup speed, place their icons in the system tray, and eat up a lot of system resources when running in the background. In addition, in some computers, even during production, a sufficient amount of useless software is installed in startup.

In addition, the speed of Windows can be affected by programs that insert their shortcuts into the OS Explorer menu. If such applications have crooked codes, then there is no need to talk about the speed of the system. Sometimes utilities install themselves as system services, and at the same time work without open windows and visible icons in the system tray. All program actions take place in the background.

Antivirus systems and various sets of security software against various pests can also slow down your computer. Typically, such programs consume a significant amount of system resources. In addition, some users make the same mistake by installing two antiviruses on their computer at once. Very often this leads to the fact that the performance of the computer is significantly reduced.

Unbelievable but true. Programs that are designed to clean your computer and are supposed to speed it up, in fact often slow it down by being located in autorun. It is worth noting that some powerful utilities To clean the computer, they are able to install additional software that is not always necessary and at the same time affects performance. You should not install applications on your computer for automatic cleaning and updating; it is better to do this yourself.

Surely many users may have noticed that when installing some applications, a persistent suggestion pops up to install a new one. home page or change the default search engine. Various control panels can also be loaded. As a rule, novice users accumulate quite a lot of such elements in their web browsers over time. As a result, it starts to slow down a lot.

How to prevent Windows from slowing down

In order for the computer to work without brakes for a long time, it is necessary to adhere to certain rules and periodically carry out preventive maintenance. It is necessary to install only those applications that are really necessary. All unnecessary programs It's better to delete it immediately.

It is also necessary to install applications carefully. When installing, it is better to select “manual installation” than “use recommended parameters”. In this case, you can see what exactly is installed in automatic mode. As a rule, there are useless panels, programs and more.

In addition, deletion must be carried out only through the control panel. When you delete only the program folder, many traces of it and services remain on the computer, as well as registry entries and other junk.

In addition, in some cases, you can use PC cleaning programs that can remove unnecessary registry entries and temporary files. But you don’t need to use these applications automatically, and you don’t need to place them in autorun.

You also need to monitor your web browser and not install many extensions and panels on it. You should not install anti-virus systems or several defenders on one computer. Users of the eighth version of Windows can do without an antivirus.

When should you reinstall Windows?

If you use the operating system carefully, you do not need to reinstall it regularly. But the system can be updated. But just updating the system from one version to another is not a very correct solution, but a complete reinstallation is much better.

In addition, you can resort to reinstalling the system when the OS, for unknown reasons, begins to crash and slow down. At the same time, it is impossible to find out the causes of the brakes and eliminate them too. Only reinstallation will help here. In addition, reinstalling the operating system may be the only solution to get rid of various malware that cannot be detected and removed.

If the system works normally, even for a long time, there is no need to reinstall the operating system. All you need to do is continue to use the computer in the same way.

How to quickly reinstall Windows

To date, several ways have been developed to reinstall the system. Modern computers have the ability to reset the system to factory settings, which significantly speeds up reinstallation. You can also use system recovery from an image, which can be created at any time.

To summarize, it can be noted that reinstalling the operating system is necessary only in rare cases when the system refuses to work or is heavily infected with viruses.

Users who decide to upgrade their computer or laptop by replacing the central processor with a more powerful one are interested in the question of the need to reinstall this operating system. After all, reinstalling it is not the most pleasant task.

Now we will tell you how to do without reinstalling Windows when replacing a processor.

Keeping the old Windows when replacing the processor

Let's start with the fact that in 90% of cases after replacing a processor, the operating system automatically installs the driver for the new processor upon first startup.

Message about successful driver installation new processor

This operation lasts literally 1 minute, after which a message about the successful installation of a new device, which in our case is the processor, is displayed in the system tray near the clock.

If, at the stage of booting a computer with a new processor, you get blue screen death or freezing, then the first thing you need to try is .

Removing processors in task manager safe mode Windows

After this, we reboot in normal boot mode. The system will detect the new processor and install the driver for it.

Please note that using this method you can do without reinstalling Windows when replacing only the processor! If changes and motherboard, then the chances are 50/50.