Random BSODs on startup caused by Avast

Avast Free Antivirus / Premium Security
1

So, it has been determined that Avast was causing assorted BSODs on startup while loading drivers. I am not sure completely why. I did have a dump analyzed by a tech at Win7 forums, and since leaving Avast uninstalled I have had no problems. Errors usually related to IRQL problems, ntfs.sys or kernel crashing, usually related to out of range memory addressing. Is there anything I can do with Avast to get it stable? Is there a cleanup utility to scrub everything Avast-related off my pc to start fresh?

“fffff880037ca1d8 fffff880044e610eUnable to load image aswSnx.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for aswSnx.sys
*** ERROR: Module load completed but symbols could not be loaded for aswSnx.sys
aswSnx+0x8010e”

“fffff880037ca6a8 fffff88001d6b24cUnable to load image aswSP.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for aswSP.sys
*** ERROR: Module load completed but symbols could not be loaded for aswSP.sys
aswSP+0x2524c”

2
  • Which Avast…? (Free/Pro/IS/Premier)
  • Which version…?
  • OS…? (32/64 Bit…? - which SP…?)
  • Other security related software installed…?
  • Which AV(s) did you use before Avast…?
3

Free
Latest Version (don’t know exact # since it is uninstalled)
Win7 x64
Comodo Firewall
No other AVs before Avast

4
  1. Download Avast Free Antivirus: https://files.avast.com/iavs9x/avast_free_antivirus_setup.exe
  2. Follow instructions: https://www.avast.com/uninstall-utility (Run this tool for all prior installed Avast versions…!!)
  3. Reinstall Avast with the downloaded installer from point 1.
  4. Reboot.