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

error-2503-2502-windows-10-office-fix

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

error-2503-2502-windows-10-change-temp-permissions

HOW TO WORK AROUND ERROR 2503 2502:

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

explorer-windows10

 

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

SOLVED: Installation Error Code 2502 & 2503

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


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