Try this: -
You can repair Windows 7 and fix corrupt files without a CD/DVD by using the built-in System File Checker (SFC) tool and the Deployment Imaging Service and Management Tool (DISM). Here’s how to do it:
Using System File Checker (SFC)
Open Command Prompt as Administrator:
- Click on the Start menu.
- Type cmd in the search box.
- Right-click on Command Prompt and select Run as administrator.
Run SFC Command:
- In the Command Prompt, type the following command and press Enter:
sfc /scannow
- This process will scan all protected system files and replace corrupted files with a cached copy. It may take some time to complete.
Review the Results:
- After the scan is complete, you will see a message indicating whether any issues were found and if they were fixed.
Using DISM (if SFC fails)
If SFC doesn’t fix the issues, you can use DISM to repair the Windows image.
Open Command Prompt as Administrator:
- Follow the steps above to open Command Prompt as an administrator.
Run DISM Command:
- Type the following command and press Enter:
DISM /Online /Cleanup-Image /RestoreHealth
- This command will check for component store corruption and repair it. It may take some time to complete.
Run SFC Again:
- After DISM has completed its process, it’s a good idea to run the SFC scan again:
sfc /scannow
Additional Steps
Check for Windows Updates: Sometimes installing the latest updates can resolve underlying issues.
Use System Restore: If you have restore points set up, you can restore your system to a previous state where it was functioning correctly. Access this via Control Panel > System and Security > System > System Protection.
Note
If these methods do not resolve the issues, you may need to consider more advanced recovery options, such as using recovery software or reinstalling Windows 7, which typically requires installation media.