Hi, I keep getting this now on Parallels 8: An error occured whil accessing the Hard Disk 0 used by "Windows XP". Error ID: PRL_ERR_DISK_READ_FAILED (80021029), ermo=35 (Resource temporarily unavailable). And if you hit retry the message keeps popping up. Any changes you make do not get reflected, like uninstalling a program. I can replicate this error everytime just by running Myob on the virtual machine.
Hello AngusLCP, Please follow the steps as suggested at: http://kb.parallels.com/120940 and check how it goes !