Go ahead and head over to the Control panel > Programs > Programs and Features, then just uninstall "Adobe Reader." After that, I guess you should probably restart your computer before trying to reinstall Adobe Reader again.
Pop a Windows 7 DVD into the drive and reboot the machine. Once you hit that initial screen from this link, click on "Repair your computer." From there, select "System Restore" in the next window and just follow whatever instructions pop up on the screen.
For the first part of your question, you could probably just use any converter you can find. Even a free one like Format Factory should do the trick, I guess.
Do you see any yellow warning icons or question marks showing up in your Device Manager? Download, install, and run the updates, then maybe give the laptop a scan using Norton AntiMalware just to be safe.
If all your PC fans are running at 12V, there’s actually a way to wire them using Molex connectors (specifically by tapping into the yellow and red wires) to run them at 7V instead. The idea is that dropping the voltage makes the fan spin slower, which keeps things quieter, though I guess that kind of tinkering is really only for the hardware enthusiasts who know what they're doing. Just a heads-up, though—that oil droplet trick you mentioned is more of a temporary fix than a permanent solution.
What do you mean, using a bigger power supply just so the fan runs at 12V? Honestly, just unplug the thing and take it back to the retailer. You'll get the right one this time.
Pretty much. You’ve got those people who prefer a faster spin—either because it’s automated or just because they like more noise—but I’d say you should just find one that matches your own specific preferences.
Nah, that’s not really how it works. macOS handles its own OS updates to improve things or patch bugs. Drivers are just there to make sure the hardware actually talks to the macOS properly.
Look, this is what =3+mm&filter[6418]=bu%C5%BEir+termoskupljaju%C4%87i']heat shrink tubing is for. You just apply some heat—like using a lighter, for example—to the connection, and it shrinks down tight around the cable. As for the fan, you’ll need to pick up one that matches the exact dimensions of the one you've got installed now.
You don't need to swap out the entire power supply unit. You were probably thinking of an 80mm fan rather than an 8mm one, right? It would be a nice touch if he actually soldered and insulated those wires properly. Out of those three wires, you're really only using two—the red and the black—but since most fans you buy come with just two wires, you'll need to keep that in mind. Also, make sure to check the width of the fan before you order anything; they usually run about 20mm or sometimes 15mm, so I guess it's best to measure first.