Frequently you need to uninstall some software which is causing your system grief, but you can’t uninstall it in safe mode. Follow these instructions to enable the windows installer.

You simply need to create a registry entry the type of safe mode you want to use:

Safe Mode:
REG ADD “HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\ MSIServer”/VE/T REG_SZ /F/D”Service”

Safe Mode with Network:
REG ADD “HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Network\ MSIServer”/VE/T REG_SZ/F/D”Service”

Then start the Windows Installer service by typing “net start msiserver”.