You should be able to open command line as an administrator and do the following:
C:\>cd "program files (x86)\pgp corporation\pgp desktop"
C:\Program Files (x86)\PGP Corporation\PGP Desktop>pgpwde --status --disk 0
Your output should look something like this:
Disk 0 is instrumented by bootguard.
Encryption process interrupted by user request
Current key is valid.
Drive encrypted
Total sectors: 625139712 highwatermark: 212756590 reserved start sectors: 2
Failed login attempt lockout enabled. Max failures=5
Request sent to Disk status was successful
The highwater mark is where the encryption is at in relation to the total sectors.