Hi,
Some days ago I updated to comodo v7, days after that I got a strange BSOD. Today I got 5 BSOD. Seconds before the BSOD, the comodo tray icon changed to the red X.
Then I uninstalled comodo and surprise, no more BSOD!
I had the most recent version of comodo (updated some days ago)
Windows 8.1 Update 1 x64 on a recent machine.
(The first BSOD happened before the Windows Update 1 with the same bug check code and driver! I restored the system and everything was fine. On April 8 I updated to 8.1 update 1, and no problems, but then after some days (today) it gone crazy giving me a BSOD all the time.)
More information:
Caused by driver: ntoskrnl.exe
Bug Check Code: 0xc000021a
Note: I only use comodo firewall, with everything disabled, everything! HIPS, and all the other options are disabled, only firewall was active with custom rullset.