Avast Boot Scan Caused Black Screen?

So last week I installed Avast Home Antivirus v4.8, and everything went well until I did the boot scan. During the scan it froze and I got a black screen. I had to turn on/off a couple of times before Vista loaded up again. I reformatted a couple of days ago, so now I am ready to re install the antivirus on a clean laptop. Did I do anything wrong? I tried doing a search but I couldn't find anything on it. I already transfered all of my files over, so hopefully I won't run in to any problems.

I have:
Dell XPS 1530
Vista Ultimate 32bit

 

I've never heard of this happening before and it's never happened any of the times I've used boot scan. Sorry I can't be more helpful.

 

I had the same issue. Seems to only affect Ultimate users only since my other Vista home Pro was not affected. Depending on how bad it was, there are several ways to recover -- basically, the latest update prevents the Windows Browser from starting (forces it into shutdown).

Option 1: (recommended)
1. Boot into safe mode (no network). Network will result in BSOD in some cases)
2. Uninstall AVAST
3. Reboot

Option 2:
1. Boot of Vista DVD if you have it
2. Go to Restore to previous point
3. Restore prior to a date prior to 7/19 (when the bad update occured).
-- you may need to check the box that is for more than 5 days
4. Reboot
5. Remove Avast since it will auto-update

 

In my case XP+SP2 ocurre sometimes, perhaps it's the rootkit detect in the bootup

 

Actually, I have Home Premium, and I have experienced this problem. I just could not get rid of it, so I went into safe mode, uninstalled it, and cruised around for a while without A/V. This was back when it was 4.6 or 4.7 I believe. Oddly enough, a few months later, I just decided to try it, and nothing when wrong. I never could figure out what exactly had caused it.

 

It is/was probably Asus Data Security Management causing a conflict.
Check these (old) links for more info;
http://forum.avast.com/index.php?topic=29956.msg246781#msg246781
http://forum.avast.com/index.php?topic=29627.msg245057#msg245057

Edit;
Anyone wishing to remove Avast!, make sure to use the Avast uninstall utility.

 

I never had ADSM enabled or even installed on my computer when I had avast!

 

OP is 3 months old ... with no concrete solution to the issue other than uninstall and reinstall. I personally have no issue with Avast, vista and xp

cheers ...