Symptoms
I am unable to install Parallels Tools in my Windows XP virtual machine. Parallels Tools installation hangs for some time at 74% and then crashes.
Cause
Windows registry misconfiguration
Resolution
Click on Start -> Run.. > type 'regedit' without quotes and hit Enter/Return.
Go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
In Registry Editor UI click Edit > New > Key
Name new key as Notify, so the full path would be HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify
- Close Registry Editor window, restart the virtual machine and install Parallels Tools again.