I had no issues at all with the installation of the update from the previous version TTP 4.5.2. I ran the install twice--once for the TTP4.5.2 and ocne for the install on the Q-Drive.

After installation, I ran the Scan from my Q-Drive using the intermediate suite. A "Failed Allocation Overlap Error " (:694) was reported on my boot drive. I never had that error before.

I re-ran the volume structures phase, and TTP 4.5.3 cleared up the issue.

I repaired permissions before and afterward and rebooted.

All is OK now.