Hello, I upgraded to mountain lion this morning and now Parallels is hammering the CPU on my MBA, using 140% according to activity monitor. All I am running is a browser in the VM! How can I fix this?
Steve Jobs was right about Flash - this took my CPU from 800% to 15% My VM was hitting 800% CPU with contant fan after migrating to Mountain Lion. I tried everythig on the forums and here is what worked for me: 1- Make sure Parallels tools and all Windows 7 updates and patches are installed 2 - If you are using a VM that was migrated from bootcamp (do not follow this step if you are still using bootcamp) uninstall the bootcamp drivers - you can find the program by going to control panel and look for program and features. 2 - Look for Flash 32 bit (also in the control panel) - open and delete the local cache option - (look for a button that says delete all and click it). 3 - Change the flash privacy to the middle option it starts with "Ask me..." Mine was set to allow sites to save... Restart the VM if necessary - the cpu is no longer hammering at crazy percentages and you are back to normal.
