Issue Solved: I don't need any clean install. I turn off secure boot. Booted the PC in recovery environment and change the following registry keys.
1. Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\CredentialGuard
Enabled=0
2.Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\HypervisorEnforcedCodeIntegrity
Enabled=0, HVCIMATRequired=0, Locked=0
3. Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\KernelShadowStacks
AuditModeEnabled=0, Enabled=0, WasEnabledBy=4
4. Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\DeviceGuard\Scenarios\SystemGuard
Enabled=0, Managed=0
Restarted the pc, vbs was off now. So, I decided to turn on secure on again and TA-DA vbs was still off.