Hello all. I believe that I have found that solution to your problem with starting SuperFetch and ReadyBoost.
With your virtual machine running:
- go to Virtual Machine > Configure > Optimization
- disable the Tune Windows for speed option
Then go to the start menu and search for services. Once services is open find Superfetch and then right click > click start.
If this doesn't work go back into the Optimization menu and disable Adaptive Hypervisor as well ( this shouldn't be necessary but I did that first then reenabled it to see if ReadyBoost still worked).
Assuming the problem you have been dealing with is the same as mine this should fix the problem. It's been about 20 minutes since I made these changes and ReadyBoost still appears to be functioning correctly!
Good luck!
-Spenser
15'' Unibody Macbook Pro 2.66 Ghz Core 2 Duo, 4 GB DDR3, Cruiser Micro 2 GB Flashdrive, Parallels 5.0.9310