I have been having issues with Microsoft office being glitchy, sometimes my excel sheet moves the data to a diff column, or duplicates a line item. If i click a diff tab and back again it corrects, word freezes and seems to run slow as well. Today my screen would flash black and display a white horizontal bar and a white vertical bar like a backwards L.
This would last 1 second and disappear.
The computer says it is up to date and the virus protection isn't flagging anything either. I think the computer functions slow but I am also impatient. Any idea what is going on? Does this sound like a virus?
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