If you ware using Citrix Desktop Lock to make older machines into a VDI client, you will know you can only disable the feature with the account you installed it on. It is common you have forgotten this account detail of the PC may have had the profile removed (Delprof2.exe). This only way around this is connect to the machines registry remotely.

1. Open Registry (regedit)

2. Connect to another Computer

3. Once connected navigate to the following registry key and change the “shell” from loading the PNAAgent to Explorer.

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

“Shell”=”C:\Program Files\Citrix\ICA Client\pnagent.exe”

To

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

“Shell”=”Explorer.exe”

This will enable Windows Explorer to start during Windows logon and not the PNAAgent.