Windows 10: Repair corrupted and missing system files.

1st method try performing sfc

1. Open start menu

2. Type cmd

3. Run cmd as aministrator

4. Type sfc /scannow

2nd method dism

In cmd type dism /online /cleanup-image /restorehealth

:)

 

Corrupted file RAR

If the archive has been created using WinRAR, why don't you try WinRAR itself? It has a built-in repair feature for repairing corrupted archive (ZIP as well as RAR). Follow the steps given below:

• Open WinRAR application in your system.
• Now click on File tab > Open or simply press Ctrl+O.
• A small window "Find Archive" will pop up. Locate the corrupt RAR archive from your system directory and select it.
• Now click Open button.
• Click Tools tab > Repair archive or simply press Alt+R.
• Again a small window "Repairing File name.rar" will pop up.
• Now click Browse to select a location to save the repaired archive.
• Check the box "Treat the corrupt archive as RAR" and click OK.
• WinRAR will start repairing of corrupt RAR archive. Once it gets completed click Close.

I hope the above steps will help you repair the corrupted RAR archive.

Thanks.

 

Unable to create System Repair Disc with some files missing on Windows 10

Hi Duncan,

Thank you for posting in Microsoft Community and being a part of Windows 10.

I understand your concern about creating a repair disc on your computer. We will help you with this issue.

Do let us know the following to assist you better with this issue:

• What is the complete error message of this issue?
• How exactly are you trying to create System Repair Disc?

Try the below troubleshooting steps and check if it helps.

Step 1: I suggest you to run the SFC scan as System File Checker utility in Windows allows users to scan for corruptions in Windows system files and restore corrupted files. If a
Windows Resource Protection (WRP) file is missing or is corrupted, Windows may not behave as expected.

Refer: Use the System File Checker tool to repair missing or corrupted system files


Step 2: I suggest you to refer to the below Microsoft article about creating a recovery drive and check if it helps.

Create a recovery drive

For more information refer:
Recovery options in Windows 10

Hope it helps. Get back to us with an updated status of this issue and with the required information. We will be happy to help you further.

 

Missing drivers, corrupt files, very slow computer

Since this is the case and the issue is caused by multiple concerns. As a recommendation,
we suggest that you run the
System File Checker by following the steps outlined on this article:Use
the System File Checker tool to repair missing or corrupted system files. This will help us to scan for any system file corruptions and restore them at the same time.

Let us know of any status or progress relating to your query.