Windows XP SP3 is not supported with PGP Desktop 9.8.3 (see attached copy of the release notes for reference if you would like). Also, PGP Desktop 9.x support is now EOL (no longer supported) please see our release announcement here around EOL dates and products here:
http://www.symantec.com/docs/TECH195346
Sorry for that abrupt response. But I want to be clear on this, as Support will not be able to do anything to resolve bugs or do extensive troubleshooting on that release.
My suggestions to try in attempt to resolve the issue:
- take a backup of the existing PGD file (that won't mount)
- test upgrading PGP Desktop 9.8.3 to Symantec Encryption Desktop 10.3.0 from https://fileconnect.symantec.com
if you don't have an up to date maintenance agreement you can download the trialware and use the features for 90 days to test
- if that doesn't work try the following recovery options:
a) Run chkdsk on the volume which stores the PGD file
chkdsk /f /r c: (example)
b) Take another spare hard drive and restore the Norton Ghost image to the drive and attempt to mount the PGD stored on that freshly imaged drive
One strong word of advice. If you are using PGP Virtual Disk I would highly recommend doing nightly backups of the PGD file elsewhere to give you a quick recovery point as large file like that can be prone to corruption over time.