This topic was published in 2010, so Comodo Forum suggested I start a new thread. The reason is that I had precisely the same problem as described below. The problem appeared when I was using Revo for uninstalling a major program (Libre Office.). Revo had worked fine before, but now the result was catastrophic. The computer became unusable in the same way as described below, with the difference that even with the WinOS DVD it was a lottery if it would start - most often the response was that the system was shut down to protect it.
I have no rogue programs and the computer was stable and unproblematic until I did this uninstall operation. After uninstalling Revo, and repairing the OS it seems to have recovered, but this took several hours to fix.
I am reproducing this info below, because it was well and systematically written including that the problem was exactly reproduced when using Revo again after reinstallng the OS.
I have Win OS 7 ultimate which has worked perfectly until this accident occurred.
If you use Revo, do read this (sorry lost the link, will try to find it again):
THE ORIGINAL PROBLEM DESCRIPTION
Revo Uninstaller and the dangerous flaw
« on: August 27, 2010, 02:10:50 AM »
Well, Revo did help me remove a couple of traces of rogue programs so I guess I’ll take it as a pseudo-security product.
So what’s the danger? Well, Revo Uninstaller has been my personal favorite since I first discovered it. And I have been using it for a year now. Since then, I have had no trouble with it at all. Until that faithful day…
Log file handwritten. Started logging after printer stopped working. Original file on notepad. Notepad crashes at one point. Have to write log instead.
2:53 PM August 21, 2010, Saturday. The printer stopped working. Tried to trace what caused the problem.
4:52 PM same date. Could not trace problem. System restore did not fix problem. Backup did not fix problem. Printer still not functioning properly.
8:23 PM same date. Tried reinstallation. Uninstalling with Revo
8:31 PM same date. Restarted PC, stuck on startup splash screen.
8:33 PM same date. PC is nearly unusable. Network no longer functional. Cannot run programs via explorer. Worked around via Run function. Applications crash a few moments after launching.
8:45 PM same date. Restored from Revo. No longer stuck at splash screen. Applications crashing. Printer error. Hardware error. Cannot capture screenshot.
9:27 PM same date. Cannot trace. Applications crash even in safe mode. Nothing else to restore.
August 23,2010. 7:43 PM. Will try to fix with reinstallation of printer.
8:05 PM. still no luck. preparing to reinstall OS.
10:40 PM finished installing OS and drivers.
11:34 PM installed all needed software. Running on basic mode. Did not install printer. Now using revo portable. reluctant to install.
4:30 AM August 24, 2010. will try to reproduce problem. installing printer. HP
4:46 AM finished installing. uninstalling via Revo uninstaller. Program traced. No other application running except advanced task manager. Checking for other processes. Non-detected. No internet connection.
4:52 AM. Problem reproduced! Stuck at splash screen. Cannot connect to internet. Proceeding to reinstall OS.
Any insight? Should I keep Revo?