Error Message
There was a failure while compacting the virtual hard disk. The system cannot access the file because it it being used by another process.
Server 2012R2 on Dell R420 with RAID 5. Server is running two Hyper-V VM's.
The message occurs on all partitions. Including ones without disk letters.
Backup is happening on disk dedicated for backup and has occurred since the first backup. The first couple of backups the error occurred on only one partition. Now, it's all of them.
There is no anti-virus running yet.
