Historically, I would have had this problem and resolved it via the following:
Me: Good morning end user who calls ten times a day, what’s the issue?
Them: There’s a problem with my system.
Me: … What part of the ‘system’?
Me: You can’t send email, or…?
Them: Yeah, email system just isn’t working and hasn’t been for days
Me: Ok, well no-one has reported this, I’ll get one of the FIRST LINE guys to call you back, I’m making server magic here.
Them: No, I need it fixed now. I can’t work and haven’t been able to work for days!
Me: Ok, no worries. I’ll get one of the guys to come down right now.
And then forget about it, until the guy I sent down is having a panic attack and quite possibly may have been bodily harmed, so google it and get it fixed.
Now, I’ve had this issue for months. I go, oh, excel preview freezes! I hate excel! (and I do) and just save the attachment. Then I decided I’d had enough and googled it. Stupid Excel.
Dead easy – go into settings -> mouse and touchpad settings (or Type ‘Mouse’ or however you get there – I still get lost) – Turn off ‘Scroll inactive windows when I hover over them’
Aside from the creative license in my conversation – I genuinely had, on a regular, repeated basis from the same people, the same opener and continued insistence that the ‘System’ isn’t working for a multitude of different things… Along with, I can’t log in. It won’t let me login. It doesn’t like my password. Oh it’s turned on now I can log in.
Don’t get me started.