Discussion and Support for the OptiTrack, SmartNav and TrackIR brands by NaturalPoint

Installing 5.4.2 - Upgrading from 5.2 - error 1325

by Wastelander » Fri May 12, 2017 8:04 pm


Trying to upgrade my Track IR from 5.2 to 5.4.2 on Win 10 X64.

Getting: Error 1325. ALLUSERS_DIR is not a valid short file name

I have rebooted and tried but getting same error.

I have tried installing in different directory - same error?

Installing as Administrator.
Posts: 2
Joined: Fri May 12, 2017 7:59 pm

by MikeWitham » Mon May 15, 2017 4:25 pm


Windows gets stubborn sometimes and I have to go in to manually remove everything from the registry. Here are the steps I take:

1. Remove TrackIR from add/remove programs
2. Remove NaturalPoint Drivers from add/remove programs.
3. Delete installer executable from where you saved it
4. Delete NaturalPoint folder from Program Files x86
5. Delete NaturalPoint folder from %APPDATA% location.
6. Open regedit.exe as an administrator
7. Search for and delete files labeled as "NaturalPoint"
8. Search for and delete files labeled as "TrackIR"
9. Reboot PC
10. Download new installer from website
11. Right-click and install as an administrator
12. Plug in TrackIR and verify the driver install.
Mike Witham
TrackIR Product Manager
NaturalPoint Employee
NaturalPoint Employee
Posts: 1477
Joined: Mon Nov 04, 2013 10:19 am

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