I'm always curious when someone mentions they have so much software that they can't tolerate a wipe and reload. right up until you load all your shit back on it, then it's back to square one. It's true that reloading Windows will speed it up. Slowness does not typically come from Windows being broken, it comes from too much shit running, old hard drives, or not enough RAM. If you have 8gb of RAM on a recent version of Win10 then it's time to double it - cheap and easy, but if you have a mechanical drive do an SSD before adding more RAM. Open Task Mgr > Startup tab and disable everything you don't absolutely Have to have running when the computer boots (if its not a driver or an antivirus it can be disabled - you can open those programs anytime you want, they just don't start when you boot up). Remove the 2nd, 3rd, etc antivirus (only ever run one).

Upgrade to an SSD via cloning (some of the manufacturers provide free software to clone). Weird and quirky behavior? Create a new profile and cut/paste your files from the old to the new.

Ninite ms office