winvista homeprem SP1
so earlier today avast free bleeped at me to update it, and I complied.
however, it took three reboots before the updater/installer finished up and gave me the "google paid us to get you to use chrome, will you let us install it?" finish dialog, and untill that boot, the avastsvc.exe and avastui.exe (and the self defense module) were running, but the tray icon wasn't showing and if I tried to scan something from context menu I got errored at that avastui.exe wasn't running. then I rebooted again(after the round where it finished it's updater), and the shutdown took an abnormally long time... but things seemed normal after windows woke back up.
but the next reboot, I was back to "it's running but it's not running". a few tries later, I used avast's own uninstall tool to remove the AV completely, and did a "clean" install of the previous (working) version. worked when it installed, worked on the next boot after some delay, quickscan came up clean except for an old instance of dds(the tool from around here), but next boot I'm back to "running but not running". and on top of it, the calender gizmo for the windows sidebar is now broken, showing a blank orange square while responding to the normal context commands but not anything that might get it to show anything meaningful.
I haven't had system restore going because normally avast doesn't go stupid in the process of updating itself, I generally avoid hazards thanks to spywareblaster and MVP hosts file n' reasonably smart browsing habits, and I'm twitchy about HDD space.
and now I'm sitting here with an antivirus that's effectively not there. an MBAM quick scan I ran after the first two reboots post-update came clean as well, so I'm flummoxed and paranoid.
I'll provide HJT logs and the like if the appropriate forum if requested, of course.
I need suggestions on getting this back to normal, please. I'm almost tempted to try another free AV, but hells if I know if it'd get afflicted with something similar or if it's just avast being daft. the avast forums seem dominated by complaints of the newest version being a trainwreck, and my phone was going to overheat before the avast tech support line actually picked up.
Edited by ZT-repairseek, 23 October 2013 - 05:42 PM.