My Macbook pro is running OSX Mavericks, this OSX and this Hardware work fine together all day. But when I start Parallels 9 Windows 7 VM, less than a minute after the Win7 desktop appears the OSX video scrambles then turns black, keyboard and track-pad becomes unresponsive and the whole Mac OS freezes, requiring power down to force reboot. I tried setting Parallels video memory to 128M but that made no difference. This same Win7 VM image ran fine for more than a year on Parallels 8 and OSX Lion. Thanks for your help.
Hi kamran, Please follow the steps as suggested bellow: 1. Download parallels Desktop 9 latest build from www.parallels.com/directdownload/pd9 2. Install Parallels Desktop 9 http://kb.parallels.com/116989 3. (Re)Install Parallels Tools as suggested at http://kb.parallels.com/4841 4. Shutdown Virtual Machine. 5. Go to Virtual Machine Configuration (http://kb.parallels.com/117287) > General > Increase number of CPU's to '2', increase memory to '4GB'. 6. Click on Options > Optimization > check Enable Adaptive Hypervisor. 7. Please follow the steps suggested at http://kb.parallels.com/112091 to improve virtual machine performance on your Mac.
