1. Windows Updates. Although this is often seen as a chore, it's important to have your windows updates set to "Automatic". This ensures that your computer is receiving all the latest updates and patches from Microsoft automatically. By having this enabled you'll be protected against all the latest security holes that may infect other computers that are not updated.

2. Defragmenter. It's a known fact that defragmenting your computer on a bi-monthly basis can result in smoother performance. This aids in making your hard drive faster (and we all want a faster hard drive).

3. Virus, Spyware, Adware Protection. It's crucial to ensure proper maintenance of your computer that you have real time protection for viruses, Spyware and Adware. This aids in the smooth operation of your computer.

4. Disk Cleanup. Windows has a built in disk cleanup system that will clean and free space on your hard drive. You should run this monthly or bi-monthly to ensure your hard drive is optimized for space. To find this option you can go to start, program, accessories, system tools
, disk cleanup.

5. Startup Limit. You should limit the number of applications that load at startup. You can edit this option using the "msconfig" option that can be typed as a command in windows using the run command. You'll then be able to edit the programs that load at startup. By limiting the number of applications at startup, you'll have a better operating computer at boot time, while operational, and at shut down.

6. Windows Firewall. By default Windows has a built in firewall. This is especially important for users with high speed connections. Ensure that you have your firewall enabled to limit any intrusions.

7. Temporary Files. Be sure to remove temporary internet files and windows temp files periodically as these can lead to unnecessary disk space that can further slow down your computer. By clearing these files you free space on your computer.

8. Shutdown Computer. Many of us get lazy and just leave the computer on overnight. This can actually lead to memory issues and will slow down the overall performance of your computer. Ensure that you shut down your computer overnight or when not in use. Also try to never turn off the computer without Windows completely shutting down first or it can lead to drive failure.

These are just basic computer maintenance tips you can follow to aid in maintaining your computer. It will lead to overall better performance, and will give your computer more durability.