Windows 10: Can't boot to Windows 10 after uninstalling Avast antivirus.

Hi i uninstalled avast free after noticing it run worse on windows 10. After I removed it via control panel I let my computer reboot.

It was unable to boot and i got caught in a "Automatic Repair Restart Loop"
I went to the Advanced options in recovery options but unable to access any form of safe mode. Also for some reason none of my restore point/images appear. Tried to Reset the PC but keep my files but that process stops at 1% due to some unknown problem.

The only thing I'm able to access is Cmd Prompt.
I'm unable to access or run the Avast clean install utility from the recovery menu since I can only guess the remnants of Avast is interfering with booting to windows 10.
Im reluctant to do a factory restore since I have quite a few important files that I haven't backed up.

Please any help is appreciated.

:)

 

windows defender

After uninstalling antivirus Avast I can't open windows defender. how to fix this problem?

 

Windows 10 MEMORY_MANAGEMENT only after 14328 update

Ok, after some persevering, it turns out that Avast! antivirus was causing the Memory_Management stop error when booting after the upgrade.

Uninstalled it in Safe Mode, booted normally and got straight in.

Just reinstalled Avast! antivirus, and all seems to be working so far.

Fingers Crossed.

 

Please try at least 3 times to repair your system with reboots between each.

What message did you get when this all started?

 

Starting "Automatic repair" "Diagnosing Computer" "Your PC did not start properly" >Advanced Options (repeat and loops)

where advanced options the only thing I'm able to access is the cmd prompt.
the options safe mode, reset pc and keep files, and system image recovery do not work.

 

This is not the whole story. A simple uninstallation of a program does not create this situation. What else have you done.

 

unfortunately that's all i did. the computer started and restarted normally the day before.

i uninstalled avast. then rebooted. then this whole issue im having appeared.

i created several restore points but none are accessible.

 

An improper removal of an AV could cause this problem, I have had it once.

When your laptop restarted after uninstall, did you get any other message?

 

Just my acer splash screen and Starting "Automatic repair" "Diagnosing Computer" "Your PC did not start properly".

if i could access safe mode i could use the avastclear utility. but all my options are limited to cmd prompt. *Huh

 

Reinstall Avast and then remove it with this:

Avast Uninstall Utility | Download aswClear for Avast Removal

 

unfortunately i can't access my desktop nor safemode to use that utility.

my options seem limited to cmd prompt at this point.

 

Please try following tests for the HDD, in case you can run SeaTools DOS try it.





Diagnostics Test

HDD TEST


Run SeaTools to check the integrity of your HDD. SeaTools for DOS and Windows - How to Use - Windows 7 Help Forums


Note Do not run SeaTools on an SSD as the results will be invalid.



Run chkdsk
Disk Check - Windows 7 Help Forums

 

I ran chkdsk but still no resolution.
I also ran farbar per another forums suggestion.
C:\Windows\System32\Drivers\volsnap.sys IS MISSING <==== ATTENTION
C:\Windows\System32\codeintegrity\Bootcat.cache IS MISSING <==== ATTENTION
being the root of my problem and from microsoft support bootcat.cache needs to be deleted.
how would i go about doing that in command prompt?


edit: after navigating to C:\ cd windows\system32\codeintegrity
"del bootcat.cache" bootcat.cache could not be found.


any solution besides factory reset?

 

An inplace upgrade might help, keeps your files and stuff and only removes the updates from Windows Update.
Repair Install Windows 10 with an In-place Upgrade - Windows 10 Forums

 

tried it but it hangs @ 1% and then shows that the task could not be finished. most likely at this point ill back up my files via cmd/notepad and do a factory reset. thanks all for your help