1. backup regisrty
2. Start -> Run -> type CMD
3. Add to registry –
REG ADD HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\Minimal\MSIServer/VE/TREG_SZ/F/D %Service%
4 .Start windows installer service by –
net start msiserver
5 . Now you can uninstall any applications / programs that is not allowing windows to boot normally