Windows XP help - Windows Scroll Down and unable to stop.

Red wrote:

Certain windows like Windows Explorer is scrolling down to the bottom of
the right pane until the end of the lines in that pane when I move the
mouse over the pane. Cannot stop it scrolling.

Other windows do not do this.

I happened right after my fingers fumbled on the keyboard and mouse
together.

What did I do ?

How do I undo without having to reboot ?

Try sleeping the computer then wake the computer again ?

The purpose of doing that, is having the drivers for
the devices do a "warm start".

To sleep the computer might take 20 seconds, to wake it
again around 10-15 seconds. Any downloads you're doing
would likely drop the connection in the process. Wait until
your downloads are complete, before intervening.

Pressing alt-F4 while clicking the desktop surface,
signals to Windows that you want the shutdown menu.
Pressing alt-F4 while say, Firefox has the focus,
would cause Firefox to quit. The alt-F4 is an alternate
way to make some input, if you need that. I've even
used that to shut down Windows 10 when the Start menu was
trashed.

*******

Some other techniques would require a reboot, and that's not
what you asked for.

To forget all hardware state (as best as can be done without pulling
the CMOS battery), you'd want to turn off all power to the computer
(like, via the switch on the back of the desktop casing). Which also
involves a reboot.

I've not heard of any easy way to reset the HID subsystem - the
danger of you attempting to do that, is losing all keyboard
and mouse input. You can disable and enable individual devices
in Device Manager, but that way leads to madness. At least a
controlled shutdown and reboot, involves no additional risks.

Paul