Laptop problems. Any ideas?

I just took it in to a computer repair and they upgraded it to windows 10 a few weeks back. My desktop looked like it refreshed itself a couple times and I try to keep my mouse in a specific area when I don't use it, but sometimes, I've come back and it's moved. I don't know if I simply forgot to... show more I just took it in to a computer repair and they upgraded it to windows 10 a few weeks back. My desktop looked like it refreshed itself a couple times and I try to keep my mouse in a specific area when I don't use it, but sometimes, I've come back and it's moved. I don't know if I simply forgot to put in in it's "spot" or not. Should I take it back in? Really freaking out here.
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