How to make Windows Installer work in Safe Mode.

Windows installer will not work under Safe Mode, this means that programs cannot be installed or uninstalled in safe mode without giving a specific command using msiexec in command prompt. To make windows installer to work under safe mode you need to create a registry entry for every type of safe mode you are login into:
Safe Mode - Type this in a command prompt:
REG ADD "HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\ MSIServer"/VE/T REG_SZ /F/D"Service"
Then start the Windows Installer service by typing net start msiserver
Safe Mode with Network - Type this in a command prompt:
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.