Annual PC Maintenance: What to Do Every Year

Quick Answer

Annual PC maintenance means a full dust clean, fresh thermal paste on the CPU if temps have crept up, fan and AIO pump health checks, BIOS and chipset driver updates, a Windows clean reinstall or refresh, and a backup of important data. Budget two to three hours and you'll add years to your rig's life and reclaim lost frame rates that crept away through 2025.

The Physical Clean

Dust is the silent killer in SA, especially in coastal homes with salty air and inland homes near busy roads. Power down, unplug, take the rig outside, and use compressed air or an electric blower to clear fans, heatsinks and the PSU intake. Pop the front filter and rinse it under a tap, dry fully before reseating. Inspect fan bearings (a sticky 120mm fan is R250 to replace and saves your CPU from thermal throttle). Carpets, pet hair and braai-area dust all accelerate buildup, so plan more frequent cleans if your setup lives anywhere busy.

Thermal Paste, Drivers and Firmware

If your CPU temps are 5 to 10 degrees higher than they were 12 months ago, repaste. A R150 tube of Thermal Grizzly Kryonaut or Arctic MX-6 lasts five years and a single repaste can drop a Ryzen 5 7600 from 85 degrees down to 70 under load. Update chipset drivers from AMD or Intel, your motherboard BIOS for stability fixes, and GPU drivers via DDU + clean install. Check SSD firmware in Samsung Magician, WD Dashboard or Crucial Storage Executive for performance and reliability patches.

Software Refresh and Backups

Windows accumulates cruft. Run Disk Cleanup, uninstall the apps you forgot you installed, and consider a clean reinstall every two years. Backup Documents, Pictures and game saves to a secondary SSD or NAS before you start. With loadshedding still nibbling at uptime, a UPS check belongs on this list too: test the battery runtime, replace if it dies under 5 minutes of load, and keep a spare RBC battery on hand for the inevitable cell failure during stage 4.

Frequently Asked Questions

How often should I really repaste a CPU?

Every two to three years on average rigs, or annually on heavy gaming PCs running 80+ degrees regularly. Air-cooled chips hold paste longer than AIOs that run pumps 24/7.

Is annual PC maintenance worth it for casual users?

Absolutely. Even a non-gamer's office PC runs cooler, quieter and lasts longer with one yearly clean and an SSD firmware check, and it costs basically nothing in parts.

Can I damage my PC during maintenance?

If you're careful with anti-static and don't yank cables, the risk is tiny. Avoid vacuum cleaners (static), and never spin fans with compressed air without holding them, the bearings hate it.