Error 21201 SMBIOS GUID after installing SCVMM 2016 Update Release 6

By Tom Kitching

I recently updated my SCVMM server to Update Release 6.  However once updated, I was getting error 21201  “Another machine with the same SMBIOS GUID is found. Recommended Action An SMBIOS GUID should uniquely identify the machine. Provide the correct value or contact the machine manufacturer to help update the hardware with correct information” as…

Migrate O365 mailboxes using Hard Matching with ImmutableID

By Tom Kitching

I have been working on a mail migration within an environment that has a Hybrid Exchange configuration with a single 365 tenant but which synchronises Active Directory from multiple forests. As part of the migration there is a need to migrate on-prem user accounts from a legacy forest into a new forest, but the accounts…