Hotfix: Hyper-V backup can cause slow system boot / large registry files

A while ago I made an open offer to people to contact me if they had experienced issues using Hyper-V backup.  A number of you contacted me with reports of large registry files in the parent partition – that would slow down system boot over time.

Well, after a lot of investigation we have figured out the cause and a hotfix is now available.  You can download it from here: http://support.microsoft.com/kb/982210

I recommend that if you are using backup regularly on Hyper-V that you install this hotfix.Note – that despite the title of the KB article, this fix applies to Windows Server 2008 R2 (not Windows Server 2008).

So what was the cause of the problem?

Read more: Virtual PC Guy's Blog

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