System AMD Phenom II X4 955, 8 GB Ram, ASUS M4A79XTD EVO Motherboard, Win 7 64 bit.

Running a sapphire 7850 2GB OC no problems on catalyst 12.8 however when ever I try to install catalyst 12.10 or the beta 12.11 I either get a bluescreen during install with a random error or a crash on system start up to black screen or a BSOD within 10 mins of loading to windows.

I tried installing the 12.10 drivers on a fresh install of Win 7 same issues.

I cant think of anything to try I'm not convinced its the graphics card as I have no issues with the 12.8 drivers system runs fine.

I did see a suggestion of altering the Installmanager.cfg within the drivers changing workaroundinstall from false to true. Haven't attempted this as I ran into problems using system restore after a failed attempt to install the 12.11 beta drivers.

No idea if this post is in the right place or makes sense.

Any suggestions welcome (aslong as they are on topic)

http://forums.amd.com/game/messageview.cfm?catid=444&threadid=162444&enterthread=y

Intel I7 960 @ 3.87ghz *Intel DX58SO *HIS HD6970 2gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit *Gateway HD2401 24" 2ms 1920x1200  ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit  ***Acer 5750 laptop

* A clear conscience is usually a sign of bad memory *

Thanks for that link. That may explain the problem on the fresh install of win 7 I hadn't updated or installed any .NET files I'd usually run the .NET 4.0 stand alone installer on a fresh install of win 7, but I'm sure on my current build I have .NET 4.0 installed as I see updates for it within windows update.

I saw a suggestion in another post about installing .NET 4.0 I was looking for a way to repair an existing installation?

Im sure I had a .NET tool at some point I was thinking of installing .NET 4.5 is that worth ago do you think? Or can I rerun the .NET 4.0 installer.

Thanks again for your reply.

http://forums.amd.com/game/messageview.cfm?catid=444&threadid=162109&enterthread=y

Intel I7 960 @ 3.87ghz *Intel DX58SO *HIS HD6970 2gb *Corsair TX650M *2x4gb Corsair XMS3 *WD Black 1TB *Windows 7 Home Premium 64bit *Gateway HD2401 24" 2ms 1920x1200  ***Asus N71Jq laptop *Intel I7 720QM Processor *Mobility Radeon HD5730 1gb *8gb Ram *Windows 7 64bit  ***Acer 5750 laptop

* A clear conscience is usually a sign of bad memory *

Thanks for the help. I installed .net 4.5 uninstalled drivers ran drivesweeper rebooted still got an error during installation blue screen with a system service exception, on reboot I noticed the AMD fuel service was still running  set it to disabled in system services tried again and got a bluescreen with driver_irq_not_less_or_equal. 

So so I used drivesweeper ran ccleaner to remove ati registry entries and got the drivers installed I did get on error relating to the HDMI audio drivers for the card yet it seems to be available in device manager.

One thing I did realise was I was running some aggressive memory and cpu timing in the bios I think what helped me may have been defaulting everything to auto which meant the installation finsihed without a bluescreen.

Thanks again for your suggestions.

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Yes it appears I do thanks for the help and suggestions.

Hopefully the next driver update won't be an issue.

Cheers