Key combination doesn't work shift+alt

Key combination doesn't work shift+alt. Separately shift+mouse and alt+mouse works. I have Windows 10. There are no utilities or anything else that could affect this. The situation is the same in Photoshop. The keyboard settings in Illustrator have been changed. Editing - Keyboard shortcut - Program menu - Object - Transform, there are no hotkeys for this command. If I try to fit them there, then only the letters from the keyboard shift, alt, ctrl do not fit. I restarted the programs and rebooted the computer. Nothing helps. What to do?