1、click the start button and type secpol.msc in the search function.
4、If a HOME version of win 71. Launch regedit from Start Search box.2. Find the following branch. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa3. Create a DWORD key under Lsa and set:Name: LmCompatibilityLevel Value: 14. Restart.