Hyper-V Virtual Machine Goes Into “Paused-Critical” State

I have a Hyper-V host with 4 virtual machines (VMs) running.  One of the VMs goes into “Paused-Critical” state suddenly.  When I resume the VM, it is able to resume successfully.  The problem is that the VM will goes into the “Paused-Critical” state again and again.

Did a search on the internet and came across this article:

http://blogs.msdn.com/b/virtual_pc_guy/archive/2009/04/22/why-is-my-virtual-machine-paused-critical-hyper-v.aspx.

Performed a check on the local disk C: drive of the Hyper-V host and found that the available free space is only 149 MB.  Deleted away some unwanted log files in the C: drive and managed to get about 1.30 GB free space.

Resume the VM again and it does not go into the “Paused-Critical” state anymore.