Vijay Kumbhani.

Start->Run and type gpedit.msc and click [OK] Navigate to Computer Configuration / Windows Settings / Security Settings / Local Policies / Security Options Double click on Accounts: Limit local account use of blank passwords to console login only. Select the radio button next to Disabled and click [OK]

"The Windows Installer Service Could Not Be Accessed" Windows key+R , in the opened Run... window type regedit In Registry Editor, navigate to: HKLM_System_CurrentControlSet_Services_MSIServer then change the ImagePath value value to: C:\WINDOWS\SysWOW64\msiexec.exe /V Close registry editor, Press windows key and type cmd  in search. when cmd opens copy the below  location C:\WINDOWS\SysWOW64\msiexec.exe /regserver Press enter  and Reboot After rebooted, everything worked again! (It didn't work before reboot).