Startup repare Windows 10 and 11

 Try the procedures below but now using a Windows installation media. If you don't have one, create using the Media Creation Tool. Access the link below and click on "Download tool now".

https://www.microsoft.com/software-download/win...
Run the tool on a functional computer and select "Create installation media for another computer".
You can create the installation media on an empty USB flash drive with at least 8GB.

With the installation media, try to repair Windows startup by following the steps below.
1. Start your computer using the installation media;
2. Choose your language, select "Next", and click "Repair your computer";
3. On the Choose an option screen, select "Troubleshoot > Advanced options > Startup Repair".

If it doesn't solve the problem, do the following:
1. Start your computer using the installation media;
2. Choose your language, select "Next", and click "Repair your computer";
3. On the Choose an option screen, select "Troubleshoot > Advanced options > Command Prompt".

At the Command Prompt, type the commands below one at a time and press Enter.

CHKDSK /R /F X:
Bootrec /Scanos
Bootrec /Rebuildbcd
Bootrec /Fixmbr
Bootrec /Fixboot

Close Command Prompt and restart the PC.

If it persists, use system restore to get Windows to the point where it was working.
1. Start your computer using the installation media;
2. Choose your language, select "Next", and click "Repair your computer";
3. On the Choose an option screen, select "Troubleshoot > Advanced options > System Restore" and follow the onscreen instructions.