1.  Configure Recovery Services vaults

2.  Configure Backup Policy in your Recovery Services vaults

3. Configure Backup for your virtual machine

4.  Make snapshot of virtual machine

5. Brake virtual machine – remove same regedit entry
open regedit.exe
go to HKEY_LOCAL_MACHINE/SOFTWARE -remove folder Microsoft
stop and start VM on azure portal
open Boot diagnostics

6. Restore virtual machine from Azure Portal