The Dell PERC H200 is a very basic RAID controller that does not have battery-backed cache, and therefore does not let you enable Write Caching within the OS. Writes using the H200 adapter can be very slow, so much that Windows Updates could take 2 to 3 hours on a RAID1!
To force enable write cache on an H200 adapter (at your own risk), do the following:
Just found out that if you are running Windows 8 with the Hyper-V Platform installed, some important settings in your “Processor Power Management” section under Power Options go missing. This is because Hyper-V decides to keep your CPU clocked at 100%.
This is obviously bad if you’re on a laptop, since your CPU will no longer clock itself down when not in use, and your battery will drain considerably faster.
Unfortunately, the only way to re-enable power management for your CPU is to uninstall the Hyper-V Platform from the OS. More of a reason for me to keep using VMware then…