Why has my Fusion all of sudden become painfully slow?

[mortenjensen01]

Hi all,

Help me out here: I am running fusion 7 and windows 7 64-bit and windows 10 (not at the same time) on a quad-core MBP with 16 gb ram - Yosemite.

All of a sudden, windows has start halting all the time - not crashing - but working in the background, flywheeling - especially when browsing folders but also when printing, saving etc. It is not all the time. At times it works ok - but then slows down to the extent of becoming impossible to use.

This has never been so before. What can cause this?

Morten

[ColoradoMarmot]

Lots of possibilities:

1) failing hard drive

2) antivirus in the guest scanning the disk

3) system restore taking a snapshot

4) Overloaded system

Most likely is the last - what's the configuration of the VM - virtual CPU's and RAM?  On a 4-core MBP (virtual cores don't count), the VM shouldn't ever have more than N-1 assigned to it (3 in this case).