CMD.EXE run as administrator hijacks "L" key to switch to that window
The weirdest thing happens, on just one of my computers (hostname AVClientXB1): If I start an elevated CMD.EXE window (from the shortcut: C:\Users\libove\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Command Prompt.lnk, which I think is the normal place, for a user called "libove", to have a CMD.EXE Start Menu shortcut), Then the (lower-case only) "L" key jumps to that window. That is, no matter what window has focus, simply tapping the lower case "L" key will cause that elevated CMD.EXE window to take focus. It is impossible to type an "l". Upper case "L", no problem. Close that CMD.EXE and "l", "L", whatever, no problem. Open a regular (NON-elevated) CMD.EXE, no problem. An elevated CMD.EXE started by going directly to C:\Windows\System32\ and right-clicking on the real CMD.EXE and selecting Run as Administrator, no problem. But if an elevated CMD.EXE is open, "l" switches straight to that window. The content of the C:\Users\libove\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\System Tools\Command Prompt.lnk shortcut looks uncorrupted (viewed both by simply right-clicking on it and selecting Properties, and with NirSoft ShortcutsManager), and I'm fairly sure the computer isn't infected with anything. I also removed that shortcut and replaced it with a copy of the same file from another computer (on which this problem does not occur), and the problem still occurs. I'm not even aware of any setting or add-on, other than keyboard remapping which is not in use on this computer, which could enable a single character to become a hotkey to switch to a window. I've run multiple virus (Kaspersky and Microsoft Defender) scans, and corruption (SFC, DISM) scans; nothing is found. And I have no reason to believe that this computer has ever been infected, nor does anything (other than the weird "l" behaviour) change while such an elevated CMD.EXE is open and "l" is hijacked. What could be causing this? How to fix it? many thanks,