I'm having a really frustrating problem with my wife's Lenovo Yoga (UEFI, Windows 11). After it shut down due to a dead battery, it won't start up and just gives me a black screen with the message: "Automatic Repair couldn't repair your PC." I've tried some recovery options like Startup Repair, but nothing worked. I ran a few command-line fixes too:
- chkdsk didn't find anything wrong
- sfc /scannow fixed a few files, but the problem persists
- I couldn't execute DISM cleanup-image
- Tried running SFC offline but had limited success.
I also attempted to rebuild the UEFI boot using the command: bcdboot C:Windows /s SYSTEM_DRV /f UEFI. This led to some errors. After assigning the letter `S:` to the EFI partition, I managed to progress a bit further in the booting process, but then I hit a blue screen with an error related to an Avast driver (aswVmm.sys) and a 0xc000007b code.
Now I can't access the Windows Recovery options as it keeps looping back to the same error, and my bootable USB is also not working, plus it looks like the UEFI Boot Order in the BIOS is completely empty. I'm thinking about reaching out to Lenovo's support, but any advice on how to fix this or what might have gone wrong would be greatly appreciated!
3 Answers
To get to the root of that blue screen issue, you’ll need dump files which are crash logs from BSODs. If you can access Windows, or even Safe Mode, check for any dump files in C:WindowsMinidump. Zipping and sharing those might help diagnose the problem further. If you don’t see any, follow this guide to adjust your dump settings for future crashes.
Have you tried creating a different bootable USB? Sometimes a faulty USB can cause problems. Just double-check that it's configured to boot first in the BIOS; this can be a simple issue with newer motherboards. I had a similar problem where I had to fiddle with the boot settings to get it to work properly.
Just a heads up, making tweaks to BIOS settings or your disk setup can risk losing data. Always ensure your backups are up to date before proceeding with any changes. If needed, check out more on this in the tech support FAQ that I found.
Thanks for the suggestion! I did make a bootable USB, but it didn’t seem to work. I checked the BIOS, and it looks like it's not recognizing any devices at all in the boot order.