I have Win 7 64 bit with 4 GB RAM, fast dual core processor, fast HDD, etc. It started booting up slowly a couple of weeks ago.
Investigating this today, I discovered AvastSvc.exe has been triggering performance reports since late June. The longest delay was 57.6 seconds!
After doing a clean install of the latest version there were no performance events, but still close to two minutes from power on to a usable desktop. I rebooted twice more after re-registering and updating. Still no real difference.
After more research, I then ran “defrag.exe C: /b” (no quotes) from an elevated command prompt. The command runs Windows Disk Defragmenter with the parameter to place files relevant to startup in sequential order.
Thank gooness someone is having the same problem. I thought I had system problems since updating. Am also running Windows 7-64 bit with AIS and my boot up time and black screen etc mirror your experience. Have spent hours trying to tweek my system to improve boot up and can only conclude that it is Avast causing it. I also updated through the gui.
I also updated through the UI and my 64 bit computer has none of the symptoms described.
Guess I must be lucky or, something else is in the mix that’s not part of my system.
Ok … After using Avast for a very long time, I too have come unstuck with this latest update.
Perfectly stable laptop, running Win7 Pro x64
Had just performed a cold reboot prior to updating my accounting software. This restart was normal. Prior to doing anything else, Avast announced the update.
Like others, a no brainer I thought. Didn’t get to update the accounting package.
My laptop has an SSD and usually boots in under 30 seconds, it is completely stable and well maintained. Until this update. I am still staring at a spinning wheel and ‘Welcome’ after 6 minutes. No desktop
How certain am I this is Avast related? Given a normal reboot immediately prior, about as certain as you can be.
I will attempt uninstall / removal in Safe mode (I can get a desktop) unless something happens in the next 5 minutes.
At this stage, this is more of a boot failure than slow boot. Not happy.
4 other computers in the house won’t be getting an update till this is sorted.
I’m running Windows 8 on a 64 bit Dell
I don’t have any slowdown when the system is up or while it’s booting.
Just as fast now as it was before the latest update.
But without any particulars, it’s impossible to say what’s causing your slowdown.
avast! or something else.
Bob, I think if the ONLY thing you’ve done is update Avast after a fresh (and normal) reboot, then the variables are quite limited.
There is certainly a problem for SOME Win7 users.
If you then remove it and the problem goes away, it becomes as close to definite as you will get I would think.
A fresh install and the problem is solved.
Not quite sure which other factors could be at play, but given we are sorted now, it possibly doesn’t matter to me (except that the other computers in the house will get a “clean” install rather than an update).
I too have this issue. I am running Win7 64bit. I created an image of my OS and can can duplicate this the slowness issue and issues connecting to the internet everytime.
it wasnt happening before latest update…this slowness is happening only after 1456 update…i try disabling avast and it boots normally
EDIT: I guess i have resolved the problem…a new network interface update from artheros was installed on the computer after the latest avast update that caused slowness in startup…i uninstalled it via device manager and rebooted first time and it was still slow…the second reboot was normal as before ;D thanks! to all who helped!
P.S. Bob, as u said its not avast who is always to be blamed…that gave me a hint…thanks for that
Of course… without the antivirus it would boot faster.
You can try uninstalling Comodo to test.
Anyway, the interaction between the antivirus and the firewall is the point here.
