"No Disk" error on startup.

[User007]

After installing under Windows 7 x64 it work okay, however i moved from default installation folder into my USB drive to make program potable, after this started to get this error when starting.

[eumagga0x2a]

This error message is not from Avidemux. Is there any leftover desktop or start menu shortcut maybe?

however i moved from default installation folder into my USB drive

Have you also renamed avidemux.exe to avidemux_portable.exe to make it store user profile in its installation directory rather than in %appData%\avidemux?

[User007]

Even when i open folder where i moved AVI demux files and launch directly by double clicking i get this error. I renamed avidemux.exe to avidemux_portable.exe still same error, no other program on my PC gives me this error.

[eumagga0x2a]

Seems to be some generic Windows issue with drive handling, the internet is full of instructions how to make Windows happy again, e.g. https://www.easeus.com/partition-manager-software/fix-no-disk-in-drive-error.html