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Windows Installer for PGP Desktop Remains at Checking Free Space On The Disk


Article ID: 156979


Updated On:


Symantec Products


During the uninstall of PGP Desktop, it remains at the stage where the C drive is checked for free space.


The issue can be caused if the C drive is hidden in the My Computer or Computer window. So, when PGP Desktop tries to search for the C drive to check the free space, it cannot find the information and hangs.



The following steps can be tried to uninstall the PGP Desktop:

  1. Make the C drive appear in My Computer window.


  1. Uninstall PGP Desktop manually by following these steps:

Usae the following steps to manually remove PGP Desktop from a Windows system. This includes editing the registry. Please be cautious when editing the registry as any incorrect editing may result in sever system damage. Please create a backup of the registry by following the steps in the link below:

Delete the following folders and files to manually remove PGP Desktop from your Windows system.

Delete the PGP Corporation folder from the following locations:

C:\Program Files

C:\Program Files\Common Files



Windows XP
C:\Documents and Settings\%username%\Application Data

C:\Documents and Settings\%username%\Local Settings\Application Data

Windows Vista/Windows 7


Delete the following files from C:\WINDOWS\system32


  • PGPdisk.sys
  • PGPcl.dll
  • PGPdskEn.dll
  • PGPdskUI.dll
  • PGPeudra.dll
  • PGPfscor.dll
  • PGPfsshl.dll
  • pgpgw.dll
  • PGPhk.dll
  • PGPiconv.dll
  • PGPlsp.dll
  • PGPmapih.dll
  • PGPmn.dll
  • PGPoe.dll
  • PGPproxy.dll
  • PGPpwflt.dll
  • PGPsc.dll
  • PGPsdk.dll
  • pgpsdkm.dll
  • PGPsdkNL.dll
  • PGPsdkUI.dll
  • PGPserv.exe
  • PGPtcl11.dll
  • PGPwd.dll

Delete the following files from C:\WINDOWS\system32\drivers


  • PGPdisk.sys
  • PGPfsfd.sys
  • PGPsdk.sys
  • PGPwded.sys

In the registry, delete the following:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows\pgpmapih.dll or OCMAPIHK.DLL 

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PGP RDD Service (only PGP Desktop 10.1.x and higher)





HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PGPserv (not available with PGP Desktop 10.2 unless it was updated from a previous version)



Applies To

C drive cannot be accessed from My Computer in Windows XP and Computer in Windows Vista and Windows 7. However, it can be accessed by typing C:\ in the address bar.