Calibre Portable not launching (version 7.5.1)

I'm not sure why it won't launch; I've tried installing 2 different portable drives.
Both drives were empty.
I placed the install .exe file on them and ran the install which placed the Calibre Portable folder on the drives.

I tried the 2nd as it wasn't working on the first so I assumed an issue with the flash drive. But the same problem persist on a second flash drive.

You can see it "working" for a few moments, but then nothing happens.

I also tried version 7.5.0. Same problem.

I'm on Windows 11. I normally use the Wdws version on the hard drive. It is closed so no program conflicts. I even restarted the computer before trying it all again.
I also tried running the calibre-portable.exe file as installed on the portable drive as an Administrator. It just doesn't do anything.

I haven't used Portable in many years, but I had no difficulties with that once upon a Wdw Vista or 8 or so...

Anyone know what's going on?