There was actually very little dust in your computer. I sprayed it, but it didn't do much since it was already fairly clean. I spinned the fan around by hand and it spun smoothly. When I put everything back together and turned it back on, it was still noisy. It's possible that the entire fan just needs to be replaced. I also was unable to install the M.2 SSD hard drive since there wasn't a screw in there. It's possible that it came without the screw. So, we'd need to order another one. It might make sense to just buy another computer instead of continuing to deal with this one. The newer ones are quieter and consume less power. I'll let you make the decision whether to try to repair this computer or not. I also lost one screw. I screwed three of the four screws on the bottom and seems sturdy, but, if we keep this thing, we'll probably want to get another screw. > From: http://dummy.us.eu.org/robert (Robert) > Date: Thu, 21 Oct 2021 02:03:19 -0700 > > > From: http://dummy.us.eu.org/robert (Robert) > > Date: Wed, 20 Oct 2021 15:29:14 -0700 > > > > According to > > https://www.howtogeek.com/72716/how-to-thoroughly-clean-your-dirty-desktop-computer/ , > > I may need a q-tip and rubbing alcohol for cleaning your computer. > > > > Where are the Q-Tips? And, do we have rubbing alcohol? > > Thanks for finding these for me. I should put them in the cloth bag > under my computer desk for this weekend's operation. >