PC, Windows 7 Home Premium, 64 bit. I have chosen NOT to install the Windows Updates - this may/may not be relevant. Malwarebytes Free, Avira Pro.
I first noticed there might be a problem when I was attempting to download regular definition Updates for Malwarebytes. The download could never quite complete - it froze up 3/4 of the way through. Same result after several attempts.
I also noticed the internet was running very slowly (and normally it's pretty quick). Another change in behavior.
I uninstalled Malwarebytes using Control Panel. I also downloaded the mbam-cleaner file from the MB site. BUT I was unable to open this mbam-cleaner file beyond the Run window (which I clicked), only to get the error message "mbam-cleaner.exe is not a valid Win32 application".
Same result when I tried to run rkill - same equivalent error message: "rkill.exe is not a valid Win32 application".
Definitly something is awry. These are very likely to be good files, and something is choosing to block their opening. I've never seen this error message before. I have made no changes whatsoever to my registry or startup - nothing at all.
Otherwise the computer still appears to be running as it should. I am writing to you from my laptop.
Any wisdom very much appreciated.
All warmest wishes,
Edited by Orange Blossom, 12 May 2015 - 12:53 AM.
Moved to AII. ~ OB