How to quickly repair the system Win7

Windows 7 may be Microsoft's best desktop operating system to date, but occasionally some problems are inevitable. Here to teach you how to quickly fix the problematic Windows 7 system, each operating system has the possibility to re-install, Windows 7 is no exception. Whether the problem is corrupted from the root cause, corrupted by malware, or some other serious problem, we are likely to reinstall the Windows system. Reformatting the drive hard drive and performing a new installation can be a headache for everyone. Here's a way to keep your all your programs, profiles and user accounts intact while repairing damaged ones. Windows 7 operating system.
In Windows 7, you can perform an online upgrade to fix an existing installation system. But when your computer can't boot completely to the Windows desktop, this automatic fix is ​​not for you. So to thoroughly try to fix your problem in Windows 7, be sure to read the entire guide. Performing a reinstallation of the operating system should be your last resort.

Preparation before Windows 7 repair
Before performing a repair installation, you should take some protective measures to ensure the security of your hard drive data. The first step is to back up all your important files to an external storage device. To ensure that you can still not lose important files even if the repair fails, this is what we have to do every time we repair the system.
When you back up your important files to an external storage disk, it is recommended that you uninstall all third-party security software such as firewalls or anti-virus software. After the repair process is complete, you can reinstall it. And in Windows boot process, you need to remove all security driver applications. So you should also download and store all the drivers, especially the NIC driver, so that you can re-network after you have finished the system.
After backing up all your drivers, clean up all temporary files and junk data, click the “Start” button, type the folder option in the search field, and press Enter. In the Folder Options “ window, click on the “View“ tab, select “show hidden files, folders and drives, then click “OK”. Next, open the “Start” menu and select Computer Startup Disk Cleanup, right click on your main drive and open the “Properties” menu. Select the Disk Cleanup Utility in the menu section in the lower right corner and select “Clean up system files.
Disk Cleanup Utility, it should take a few minutes to rescan the drive. Next, click on the “More Options” tab and select Clean in the “System Restore and Backup” menu at the bottom of the menu. In the dialog that appears, click the “delete” button, then navigate to the Disk Cleanup tab to confirm all the item removal lists in the file for review and click ”OK“. The Disk Cleanup utility cleans out outdated system files, temporary data, and other debris. How much garbage data is on the root drive, this step can take a few seconds to a few minutes.
After running the Disk Cleanup Utility, you should manually clean out several folders. Open the C drive again and double-click the Windows folder. Pull down the scroll bar to find the Temp folder and delete all the files in the folder. Next, go back to the C drive and double-click the “Users” folder. In the "Users" folder, double-click the first folder of your specific username, and then delete the AppData folder (if you don't see the AppData folder, you must not select "Show hidden files, files" Clip and drive early) and then reboot the system.

Installing Windows 7 System
After completing the preparation work, you can start the repair work of Windows 7. Need to match the Windows 7 installation CD for the Windows version already installed on your system, and at least 10GB of free space on the drive you want to install the new version you need. The installation space must be able to deploy a clean Windows CD.
To begin the repair process, first insert the installation CD and run the installer (if it does not start automatically). In the settings window, click the “Install Now” button. Next, you must accept the terms of the license agreement and choose whether to perform an upgrade or custom installation. You fix a corrupted installation, so choose Upgrade (custom options will not save your profile or settings).

When you select the "Upgrade" option, the installer will perform a compatibility check on your system because you have already run the same version of Windows 7, but double check that there is no red flag. The compatibility check, once completed, press the Next “ button, the upgrade/repair installation process will begin.
“Upgrade" option, if it is unusable for some reason, you can still perform the repair by using a simple solution: right click, then run the installation file and select “property" menu. From there, find the "Compatibility" tab and check that this program is run in compatibility mode. Then from the drop down menu in Windows Vista (Service Pack 2). Also be sure to check the mark at the bottom of the box as an administrator to run this program, then click “OK”. Run the installation utility again and the upgrade installation option should work.

In the Installer Properties Compatibility tab, schedule the program to run in compatibility mode for Windows Vista Service Pack 2.
The repair process in the next few steps does not require any user intervention. The installer will collect information about your system, copy the necessary installation files, and then move to any new version of Windows 7 for any personal files or programs. This process is not particularly fast (a typical fix is ​​installed on our test machine for about 40 minutes), but the time required will depend on how much data needs to be transferred from one Windows 7 system installation to the new system and is slightly different .
Restart the system after the installation is complete to ensure that everything is moved to the new system.
Windows 7 Post-Installation Cleanup
After the upgrade installation process is complete, you will be prompted to activate your new installation and ask you to answer some basic setup questions (time and date, network settings, etc.). At the end of this installation process, your machine's performance will be evaluated to produce the appropriate Windows Experience Index score, followed by some final updates and repairs to complete the installation.
Also, once the entire installation process is complete, you should be in a new version of your Windows 7 to confirm that all files are intact and all applications are working properly. Run Windows Update to make sure your version of Windows 7 is up to date.

To complete the installation process, you need to clean up the old garbage from the corrupted Windows 7 version of the legacy data. Windows stores this data in two system folders, labeled in place, TR and WINDOWS. If everything is ok, you can delete both folders, along with some other archived data.
Thus, perform disk cleanup as described above, choose to clean up the system files, delete the two folders, and do the complete steps, then you have successfully repaired your Windows 7 computer completely!