Windows failure can be solved by repairing and installing, backing up data before operation, starting with a USB flash drive and selecting "Repair Computer", and running three commands to repair system files through the command prompt. In special circumstances, try restarting the update service, rebuilding BCD or checking the explorer.exe process. If it is invalid, consider reinstalling the system.

There is a system problem, is it troublesome to reinstall it? In fact, many Windows failures can be solved through repair and installation. It will not delete your files and software, it will just reorganize the system files. The key point is not to forget to back up important data before operation.

Starting with the installation USB drive is the most critical step

If you don't have a disk installed, you have to go to Microsoft's official website to go to the Media Creation Tool first. If you plug in a USB drive above 8G, this tool will automatically help you prepare a boot disk. Press F12 or DEL keys to enter the BIOS setting priority startup item, just select the USB drive. When some computer boot screen flashes by, there will be a prompt to press which key to enter the startup menu.

Select "Repair Computer" and do not install the system directly

Don't rush to click "Install Now" when entering the installation interface. There is a small word "Repair Computer" in the lower left corner that is easy to ignore. After clicking, you will be asked to select the system disk. Under normal circumstances, you should be able to see the original Windows partition. At this time, if the system disk is formatted or the partition table is broken, it will be troublesome. However, it is recommended to try the following method first in this case.

Command prompt can solve many hidden problems

Find the command prompt in the troubleshooting solution. Entering three commands can basically deal with most system files corruption:

 sfc /scannow /offwin dir=C:\ /offwindir=C:\Windows

 DISM /Image:C:\ /Cleanup-Image /CheckHealth

 DISM /Image:C:\ /Cleanup-Image /RestoreHealth

Note that the C drive here should be modified according to your actual system drive. After executing these three commands, restart to see if there is any improvement. If the prompt cannot find the path, it may be that the boot record is broken and needs to be rebuilt the BCD.

You can try these operations when encountering special circumstances

Sometimes some special problems arise:

• System update stuck: You can use net stop wuauserv and net start wuauserv to restart the update service
• bootrec /fixmbr and bootrec /fixboot in the command prompt
• The desktop suddenly disappeared: Check whether the explorer.exe process is still running, start it in the task manager

Remember to take a screenshot when encountering specific error messages. Searching for error codes can often find targeted solutions. Basically, these methods are not complicated but many details are easily missed. If it hasn't been done for a long time, you may really have to consider backing up the data and reinstalling the system.

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