Export/Import DHCP server reservations list

Run CMD as administrator on source server

c:\> netsh dhcp server \\MY_SERVER_NAME scope 192.168.1.0 dump>c:\dhcp.txt

Delete unnecessary commands, update "server name" and/or "scope"
Run CMD as administrator on destination server

c:\> netsh exec c:\dhcp.txt

Recover deleted user from Office 365

Connect to MSOnline using powershell and run the code:

Restore-MsolUser -UserPrincipalName user1@o365info.com -AutoReconcileProxyConflicts -NewUserPrincipalName user1@o365info.com

Source: o365info.com