SOLVED: How To Fix Error 2503 2502 On Windows 10 When Installing Software

If you are installing (or configuring) software on your Window 7, 8 or 10 PC, you may see ERROR 2503 followed by ERROR 2502:

Fortunately there is both a fix and workaround for this problem:

HOW TO FIX ERROR 2503 2502:

Set the permissions on C:\WINDOWS\TEMP to AUTHENTICATED USERS = FULL CONTROL

HOW TO WORK AROUND ERROR 2503 2502:

End task on EXPLORER.EXE and start a new one WITH ADMIN PRIVILIGES.

 

You might also try running the .MSI from an elevated command prompt:

Further information is available from:

http://www.tomshardware.com/forum/1145-73-internal-error-2503-2502

http://answers.microsoft.com/en-us/windows/forum/all/internal-error-25032502/28b361b7-b2d7-494d-8470-5969f6850f5a?auth=1