Laptop extremely slow after just a couple years of use.
Hi, I had got an Acer Aspire E15 laptop on Christmas of 2015, the laptop worked great for the first year of so, but now in late 2017, it runs very slow, I have upgraded and downgraded between Windows 8.1 and Windows 10. I have also factory reset the laptop on numerous occasions and am still met with the slow performance. I remember that one time I couldn't downgrade to Windows 8.1 because I had passed the time frame to roll back, so I messed with the partitions a bit and was able to roll back, after that I went back to windows 10 and I'm currently using 10. I'm not sure if me messing with the partitions caused this or if the parts inside are just dirty, but I was wondering if that might be the case and how to clean the parts safely and efficiently so the performance can go back to normal.
Things I've tried:
Clearing startup programs from task manager
Registry tweaks (Not using any currently)
Installing latest drivers
Intel Celeron N2830 CPU 2.16 Ghz
4 GB DDR3L RAM
Windows 10 64-bit
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