I uninstalled and reinstalled my SSD, now my computer has slowed way down after opening many things, what should I do?

[Guest Xavier_483]

I was recently building a new computer, and took my SSD out of my old build and put it into my new build. Then, I decided I wasn't close to finishing it, so I put it back into my old build. Booted up like normal and everything was fine. I left it on, left, came back, and nothing would open and eventually Windows crashed. I restarted it and it was fine again, normal boot speeds, everything opening at normal speeds. But whenever I open up too many applications, it eventually slows way down and takes multiple minutes to open anything. I never had this problem before. If I try to download from any

 

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