I have recently installed an Iomega REV (external Firewire) drive on a PC running Windows XP SP2, with Avast! Home 4.5.549. It seems there is some conflict between Avast! and the REV drive and I would like to know whether anyone else has experienced this problem and knows of a solution or work-around.
The problem is quite repeatable when Avast! on-access protection is enabled: if I use Windows Explorer to copy and paste files or directories onto the REV drive, the system instantly re-boots without doing the copy/paste - there is no error message or blue screen whatsoever, it just drops immediately back to the BIOS as if by a hardware reset.
The problem does not occur if I copy/paste to any other drive, or if I copy files using the command prompt, or if Avast! on-access protection is disabled (using the “Stop On-Access Protection” command from the Avast! system tray icon). Also, it seems that once I have copied one or more files to the REV using the command prompt, copy-and-paste to the REV drive then works correctly!
I am using up-to-date drivers for the REV, which apart from this nuisance seems to work fine. I have no other third-party disc or file system related drivers installed, such as for writing CDs/DVDs.
Any solutions, work-arounds or suggestions as to how to debug this problem would be greatly appreciated.
Thanks, Technical - you beat me to posting the MSDN link…
It seems to say that the problem is down to an invalid memory access at address 0x804e19ea, but I don’t know how to track it down further. If it is a memory access fault it could be hard to find the original source of the problem anyway.
Hello igor - yes, there is a Minidump. I’ll try to find some way of analysing it, and will post whatever I can dig out.
Technical - the system memory has been tested using Memtest86 and is working fine. The system is completely stable (famous last words!) except for the exact scenario I described.
I am having the same problems but with WinXP x64 Edition build 1289 and Iomega’s REV drive. All works fine til I install Avast. Uninstallation corrects the issue. Other zip drives were o.k.(atapi 250 and atapi 750) Only did the Win install , SB Audigy drivers 010405, REV system software 3005 (drivers only, no software as yet) and then Avast home 4.5.
I just downloaded a new version (3.0.1) of the Iomega REV System Software from their support pages, and it looks like the problem has “gone away”. I will keep playing with it over the next few days and post again if I see any crashes.