Is it safe to remove my AMD CPU cooler after 7 years?

Before you remove the cooler, try running your computer for a bit. This will warm up the thermal paste and make it less likely to stick. Just don’t rush it; if it resists, don’t pull hard. You could end up damaging the CPU or the motherboard if you're not careful.

Definitely use 90% Isopropyl alcohol and some q-tips for cleaning off the old thermal paste once you get the cooler off. Also, if you're replacing the cooler, make sure whatever new one you get has thermal paste already applied or you have some ready.

If you aren't having thermal issues, it might not be necessary to replace the cooler now. However, I’ve heard stories of CPUs getting stuck, so just take it easy when you remove it. Gently twisting is key to breaking the seal.

There's really no way to know for sure until you try. If you're concerned, some suggest running something graphically demanding for about 20 minutes before removing the cooler. That way, it’ll be easier to get off once it's warmed up.

From my experience, it's common for stock coolers to get stuck. You might want to unplug the cooler fan and let your CPU warm up a little to help loosen it. When you go to remove it, twist it gently instead of just pulling straight up.