How can I keep my Windows PC maintained & running smoothly?Excellent question, glad you asked!
Think of this as a guide that you should seriously consider printing out and putting up on the wall next to your PC. If you don't know how to do some of the things suggested, feel free to look them up online and get help from a PC Tech/Repair Professional.
Please use caution downloading and installing third party software because there are companies/groups out there that will make software that seems like it does everything you need, but installs malware/spyware/adware on your PC, which is not acceptable and can damage your data or system.I recommend that you turn off and reboot your hardware periodically because electromagnetic interference can come from anywhere and cause "bits to flip" in electronics, among other anomalies. Turning them off and depriving them of power for a little while can help things go back to a more normal state.
The following advice applies to ALL types of PCs like: notebooks, laptops, netbooks, desktops, workstations, tablets, nettops, etc.
1) Run frequent antivirus, spyware, and malware security scans on your PC.
Some programs update themselves and run scans on their own, but you should make your own schedule to do so,
at least weekly.2) Completely shut down your PC for an hour at least once a week, if you don't do it daily. Not only does this give your system a chance to cool down, but also gives you a chance to listen and see if any of the fans, or your hard drive sounds weird as it slows down.
3) Unplug from electricity/turn off your networking gear for a few minutes at least once a week. This reboot of sorts helps the hardware to go back to working similar to a fresh unit out of the box.
4) Don't use hibernate or sleep modes all the time on your PC. Vista and 7 handle these features much better then XP on maintaining your data properly with minimal errors, but they can still cause issues with some programs. See number 2, as it is relative to this step.
5) Periodically check to see if there are updates for: your web browser and its plugins, your version of
Windows, BIOS, motherboard, DirectX, video drivers, sound drivers, network drivers, & security software. Checking ever 2-4 weeks should help.
6) Clean up your system by deleting Temp files, and by cleaning out your web browsing history, cache and cookies. Cleaning these off your system at least once a week can free up drive space and help your system run smoother.
7) Try to reduce the amount of SPAM/Junk email that you receive, or delete it if you you use a email client to download POP based emails on your PC instead of web based (like Yahoo, Gmail, Hotmail).
8) Back up your data at every 1-2 weeks. RAID is overrated. Your media (music, movies, games, documents, pictures, projects, schoolwork, game saves, etc) should be copied to an external drive (hard drive or solid state), and kept in a secure location AWAY from where your PC is located. That way, if there is a fire, flood, theft, drive crash, or anything happens to your PC, you'll have a back up of your data, and hopefully only be a week or two behind on your work instead of losing it all.
9) Keep your wallpaper simple. Don't use the programs to change them all the time with pretty pictures or animations. This uses system resources that can be better utilized for something else.
10) Don't try to max out your desktop resolution just because you can. If you can set it a little bit lower and it still looks appealing to you, then do it. The less pixels your system has to push, the faster it is.
11) Don't use super pretty animated screensavers. Especially ones with elaborate animations or videos playing. These can eat up system resources and cause your system to have errors or crash especially if you are running a 3d program like a game.
12) Carefully go through your Add/Remove/Uninstall Programs area of your PC and remove programs that you no longer use, or that have "shown up", and you don't know how they got on your system. Make sure you aren't uninstalling a program that your system needs, or that you need.
13) (Optional) Unless you need the special features that some IM (Instant Messaging) programs provide, get a program that handles multiple IM types (like AIM/AOL, Yahoo, Live/MSN, ICQ) like Diggsby, Trillian, or others, and uninstall all of the other IM programs that you have.
14) Keep the number of programs that start up automatically when Windows boots up to a minimum. Having 1-4 programs that start up with Windows should be ok. Having none is really good. Having 5-15 or more starting up with Windows is PC suicide, as all of those programs are fighting for system resources which slows down your PC.
15) (Optional) Change the settings on your PC to limit animating Windows, and turn off graphic effects like transparencies, shadows and more. This will help speed up going between different Windows when multitasking.
16) Minimize Desktop Shortcuts. Try to keep them to 20-30 or lower. Launching programs through the Quick Launcher or Start Menu is quicker, and your PC can startup quicker. Disabling Desktop Shortcuts being displayed is an option as well.
17) Don't keep open mouth liquids near your PC to help minimize accidents. Have a table or flat space near your desk, or have a drink "area" lower then where your PC is.
18) Give your PC and display room the breathe. Make sure that there is at least 5.1-10.2cm (2-4 inches) on all sides of your display or PC, and anything near them. The air vents and fans need plenty of space to breathe on desktop PCs, or your system can overheat. For laptops and small form factor systems, you have to be careful and not use them on your bed covers, a carpet, jacket, or even your lap directly. Keep a flat hard book or other laptop friendly surface with your system so you can be sure that the laptop's vents and fans can circulate air properly. Having the back two corners or your laptop raised up at a slight angle can help airflow well.
19) A can of air with a straw nozzle attachment is your friend. Unplug your PC from the power supply. Blowing off the fans and vents on your laptop every few weeks is good. For desktops, opening up your case and blowing off everything is really good and should be done at least every 2 months. Blowing off your keyboard can help prevent crumbs from causing typos and stinking

20) If multiple people use your PC, carefully take some PC cleaner (or hand sanitizer) and apply it to a rag or paper towel first, smear it in some, and then clean your keyboard and mouse thoroughly. Depending on the frequency of the PC being used, this should be done every week or two. Keeps your gear from getting grimey, and helps cut down on passing germs and viruses. Keyboards and mice are some of the dirtiest objects in everyday life.
21) Use a surge protector power strip or uninterpretable power supply (UPS) with your PC, and have your networking and power cables hooked up to it. This can help protect your investment, and also help reduce noise and interference in the cables.
22) Don't use or install various search and "helpful" toolbars onto your system or web browser. These use system resources, and can be sniffing data on your PC which can also mess with your network traffic. Many of these are actually installing spyware or adware onto your system. Using Favorites or Bookmarks in your web browser instead will help your system run better. Plus, you won't be sharing your browsing history with a third party!
23) Keep at least 4-10GBs of hard drive space free for your programs and Windows to run properly. You may need to have even more free hard drive space depending on the programs that you install and their requirements.
More info:http://www.techradar.com/news/software/operating-systems/50-expert-tips-to-make-your-pc-faster-622700http://www.microsoft.com/protect/http://www.microsoft.com/atwork/maintenance/speed.aspx