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Using Virtual PC 2007, if you attempt to install Virtual Machine Additions (VMAdditions.iso) on to a virtual Windows 7, the OS will crash and you will have to do a system restore. How to solve this?

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Please post your solution as the answer and then accept it. – Indrek Aug 26 '12 at 16:10
Server 2005? Never heard of it – Canadian Luke Aug 26 '12 at 16:13
@Luke He probably means Virtual Server 2005, the predecessor to Hyper-V. – Indrek Aug 26 '12 at 16:17
Ooooohhh ok. Did not know that – Canadian Luke Aug 26 '12 at 16:18
up vote 2 down vote accepted

The issue is solved by upgrading your copy of Virtual PC on the host computer to Virtual PC SP1. It can be found here:

Also, if you're running VPC on Server 2005, upgrading to Server 2005 RC2 SP1 works as well.

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