Microsoft has recently announced a problem identified with certain third party portable devices and media devices which may crash Windows 7 and Windows Server 2008 R2 operating systems. This problem is caused because of a Windows in-built driver race condition on attaching certain devices to Windows 7 Computer. There has been no announcement about the list of such devices by Microsoft.
The error or the Blue Screen Of Death which appears on detecting such devices display a message something like :
STOP: 0x00000001 (parameter1, parameter2, parameter3, parameter4) APC_INDEX_MISMATCH.
Microsoft has officially shared this problem at this support page. The fix for this problem will be rolled out with the official service pack 1 or the Windows 7 which may arrive around mid of year 2011. Till then, Microsoft has released a hotfix (link at the end of article) which will fix this issue.
So if you have every experienced that your Windows 7 desktop or laptop computer crashes on attaching certain portable device or certain media device, then it is advisable to download the hotfix and install it on your Windows 7 or Windows Server 2008 R2 OS.
via – Softpedia