A family of Microsoft word processing software products for creating web, email, and print documents.
I'm having the same issue with a document, since yesterday. I didn't have it before. I've been working on this document for a few years now, without a problem. What did change though, since the day before yesterday, is that I inserted a few jpg-files into the document, some from file, some from the snipping tool. Because of that, the size of the file went up from about 1 MB to 5 MB. Since then, Word seems to jump to the end of the 140-page document without reason, but it almost always happens when using either Control, Shift, End or a combination of them with one of the arrows. Very annoying indeed.
EDIT 1: I just started typing in the document, after putting the cursor in the right plays with the arrows, and Word jumped to the end of the document. Second try, this time with the mouse, same issue.
EDIT 2: I hadn't mentioned that I was working on the document at 70% (or so) view, which equals 2 full or 4 partial pages visible on a 28inch monitor. Since I switched to 120%, only part of 1 or 2 pages visible, the issue seems to have stopped. This was not the way I wanted to work though, so the actual problem is still there and IMHO needs solving. I'll let you know if the problem reoccurs in 120% view.
EDIT 3: It still happens, but notably less.