Appletax
Well-Known Member
- Reaction score
- 385
- Location
- Northern Michigan
Got a custom gaming / business PC with Win 10 that keeps crashing with BSODs.
I checked the hardware to see if it could be causing problems. RAM and PSU tested good.
Kept showing "Your PC/Device needs to be repaired" - a required device isn't connected or can't be accessed. Error code: 0xc0000225. Pressed F8 for Startup Settings and tried various options - Safe Mode, disable driver signature enforcement, disable early launch anti-malware protection. All of these options caused a different BSOD - the OS could not be loaded due to an issue with File: \Windows\System32\drivers\avgVmm.sys, error code: 0xc000007b. That showed me that AVG was the culprit.
Tried to do a System Restore, but there were none available.
Booted Win 10 Installer USB and tried Startup Repair, System File Checker, Check Disk, deleted all the AVG files in the drivers folder using CMD - now it always goes to a BSOD saying, "Inaccessible_Boot_Device."
Tried using bootrec commands to fix it. bootrec/fixmbr always works, bootrec/fixboot always says "Access is denied" no matter what I try, bootrec/scanos shows 0 Windows installations.
Disabled fast boot, which could be a cause for the access denial.
Note: D: is the Windows partition's drive letter (which can be found using bcdedit |find "osdevice").
Used DiskPart to assign a drive letter (N
to the EFI partition and then used the command format N: /FS:FAT32. Tried repairing the bootloader with the command bcdboot D:\windows /s N: /f UEFI, which says "boot files successfully created."
Directory of D:\Boot shows 3 directories and 0 files - <DIR> . , <DIR> .. , and <DIR> sm_da.
bcdedit /export C:\BCD_Backup
cd boot
attrib bcd -s -h -r results in "file not found - bcd."
Pics of some things I tried:
![CMD 1.jpg CMD 1.jpg](https://www.technibble.com/forums/data/attachments/15/15855-de28fffa666d4b8108fe7b944b4e4911.jpg)
![CMD 2.jpg CMD 2.jpg](https://www.technibble.com/forums/data/attachments/15/15856-a8f3f149f816056cf1e8fcedc7cc240e.jpg)
Edit: now it shows "Error code: 0xc0000001"
--
My brain is fried lol. I sooo badly just want to nuke and pave right now. I don't know what else to do. The only bad part is having to reinstall his programs, some of which may require having to call the software maker's tech support to install it.
It sure would be nice if the D:\Boot directory had 'BCD' in it. That might help.
I checked the hardware to see if it could be causing problems. RAM and PSU tested good.
Kept showing "Your PC/Device needs to be repaired" - a required device isn't connected or can't be accessed. Error code: 0xc0000225. Pressed F8 for Startup Settings and tried various options - Safe Mode, disable driver signature enforcement, disable early launch anti-malware protection. All of these options caused a different BSOD - the OS could not be loaded due to an issue with File: \Windows\System32\drivers\avgVmm.sys, error code: 0xc000007b. That showed me that AVG was the culprit.
Tried to do a System Restore, but there were none available.
Booted Win 10 Installer USB and tried Startup Repair, System File Checker, Check Disk, deleted all the AVG files in the drivers folder using CMD - now it always goes to a BSOD saying, "Inaccessible_Boot_Device."
Tried using bootrec commands to fix it. bootrec/fixmbr always works, bootrec/fixboot always says "Access is denied" no matter what I try, bootrec/scanos shows 0 Windows installations.
Disabled fast boot, which could be a cause for the access denial.
Note: D: is the Windows partition's drive letter (which can be found using bcdedit |find "osdevice").
Used DiskPart to assign a drive letter (N
Directory of D:\Boot shows 3 directories and 0 files - <DIR> . , <DIR> .. , and <DIR> sm_da.
bcdedit /export C:\BCD_Backup
cd boot
attrib bcd -s -h -r results in "file not found - bcd."
Pics of some things I tried:
![CMD 1.jpg CMD 1.jpg](https://www.technibble.com/forums/data/attachments/15/15855-de28fffa666d4b8108fe7b944b4e4911.jpg)
![CMD 2.jpg CMD 2.jpg](https://www.technibble.com/forums/data/attachments/15/15856-a8f3f149f816056cf1e8fcedc7cc240e.jpg)
Edit: now it shows "Error code: 0xc0000001"
--
My brain is fried lol. I sooo badly just want to nuke and pave right now. I don't know what else to do. The only bad part is having to reinstall his programs, some of which may require having to call the software maker's tech support to install it.
It sure would be nice if the D:\Boot directory had 'BCD' in it. That might help.
Last edited: