I have two systems connected via a LAN. One is XP Pro 32-bit. The other is Windows 7 Pro 64-bit.
After upgrading from Avast Internet Security version 5.0.677 to 5.1.864, I discovered that several files and folders were ‘missing’ on the Windows 7 system when viewing a network share from the XP system. Checking the Windows 7 system itself showed that these files/folders were actually still there, they just could not be seen from the other system. The same problem occurred with other network shares. I checked security access rights and network share permissions (and in fact recreated them) to make sure that there was nothing amiss with these.
Reverting to 5.0.677 on the Windows 7 system cured the problem, but now I am stuck at that level until this problem in Avast 5.1 is fixed.
I contacted Avast, who suggested trying a beta version. I did, but it had exactly the same problem.
To factor out any interaction with other software or hardware, I temporarily reinstalled Windows 7 with no extra software (other than the Intel WiFi adapter driver) or peripheral hardware. The problem reappeared as soon as I installed the beta version of Avast. So I think it looks like a genuine problem with Avast 5.1.
You might not have noticed some of the other related posts, so you could try the pre-release build 5.1.884 (below), which is hoping to resolve some of the issues with 5.1.864.
Thanks to DavidR for the suggestion, but I had already tried that before posting to the forum. I found other posts relating to problems with Windows-7 64-bit, but nothing resembling mine. Whatever it is, it’s completely reproducible–it’s always the same files and folders that can’t be seen via the LAN.
I would also like to migrate my XP 32-bit system to Windows 7 64-bit, but since the only version of Avast IS that I can find to download is post 5.0.677, I suspect it will encounter the same problem. Anyone know if Avast offers back-level versions for download?
This is known issue for me, but I hadn’t time to fix it yet. Uninstalling process virtualization (on Win7 x64 machine) should help. I’ll fix it in next program update.
OK. Uninstalling process virtualisation has bypassed the problem–a big relief for me.
I first tried upgrading to Version 5.1.889 with process virtualisation still in place. This was no good; I still had the problem of ‘invisible’ files/folders on some network shares on my Windows 7 64-bit system.
Then I uninstalled AIS completely, using aswClear.exe, and then reinstalled without process virtualisation and, bingo, the problem has gone away!
Any estimate of when a release with a ‘proper’ fix will be available?