Video Files no longer working in Windows 11 24H2, Version 2501 Feb 11 2025

[Miles R]

All, found the cause of this problem at last.

I rolled back the Access Version to a previous one and the problem was still there, so not an issue with Access - reverted to the latest version.
I had also done an optional update for an Intel Display driver. Did not see how that could affect WMP in Access, since WMP was working perfectly on its own.


Nonetheless, I rolled back the Intel Display driver to a previous version and lo and behold, the problem has gone away.
The offending Optional Update was :
Intel Corporation - Display - 31.0.101.3302

The current Driver is now 32.0.101.6129, which is obviously a much later version that the one in the optional update.
Not sure why Windows Updates would be offering an Optional Driver update that is much older than the one currently installed.

I suppose the moral of this story is do not install optional updates unless you know exactly what you are doing!

[Welshgasman]

Well done for getting to the bottom of it.

[moke123]

So, I see that you are on 32 bit access. Looks like this issue only affects 64 bit.

I have both actually. 64 in office at 32 and 64 at home.

Glad you got it sorted.

[isladogs]

I have Access 365 Version 2503 Build 18609.20000 64-bit Beta Channel
MP4 video files still work with no problems using WMP