upgrade error

[lwilson]

we are getting this error regardless of the workstation we try to install the upgrade on:
Backup stopped (2)
could not back up the following files:
M:\CommitCRM2015\CommitCRM\Client\Mainbrace2015.qb w(32)
M:\CommitCRM2015\CommitCRM\Client\Mainbrace2015.qb w.TLG(32)
M:\CommitCRM2015\CommitCRM\Client\*.*
Obviously it has something to do with our quickbooks file, but does not give any more information
Can you tell us what to do to fix this?

[Support Team]

Is it possible that you store the QuickBooks company file under the RangerMSP folder tree on the server? If so - it should not be there.

Moving forward - restart the server and verify that no one opens QuickBooks.
Then - move the QuickBooks company file outside of the RangerMSP folder tree.

Run the upgrade program.