Archive for February, 2012

VMWare Slow shutdown with Windows 7 Shadow Copies and System Volume Information

I love VMWare, but one of my frustrations has been that when you ‘sleep’ a VM, Windows takes an absolute age to flush the VM from memory.

When you examine the disk activity from Resource Monitor, you can see that a lot of data is being written to System Volume Information folder. This is Windows basically storing a snapshot of the files due to System Protection being enabled on the drive.

Today I discovered that it is possible to disable System Protection for certain folders:

http://msdn.microsoft.com/en-us/library/aa819132%28VS.85%29.aspx

Adding your VM folders to the registry to prevent snapshots being taken significantly speeds up the shutdown of a VM on my system.

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