Backup task fails with "Failed to prepare guest for hot ...
https://www.veeam.com/kb193816.10.2014 · This issue takes place, when RPC settings are not properly configured in registry. Steps to fix the issue: Log on to Guest VM, press Start > Run > regedit Navigate to HKLM\SOFTWARE\MICROSOFT\RPC\INTERNET Export this key to back it up first, then delete the whole Internet key (and it's sub-keys). Reboot your system and run Veeam job once again