Make sure you check for System update Monthly,Windows Releases Updates for the Computers The 1st Tuseday of each month.
Make sure you update your anti-Virus Program every day and scan it every day
Make Sure you update your Anti-Spyware every day and run it right after the Anti-Virus Scan finishes.
Microsoft Released every 16 months a Major Update pack called a Service Pack that will include Major Fixes like Patches for holes that can lead to virus attacks or just some improvements
Anti-Virus Programs that are the best
AVG
Norton
Avast
Anti-Spyware Program that is really good
SuperAntispyware
Also Note Run Disk Cleaner monthly and Disk Defrag Monthly as well as make sure if your a online gamer that your Video card driver is updated.
java and Adobe NEEDS TO BE ALL WAYS Updated Because Viruses attack these the Most
Windows 7 or Windows 8 are the latest and the best
Windows Vista Support ends in 2 years
Windows X.P Support has ended last October (No More Updates)
Office 2013 only supports 7 or 8 and internet explorer 10 ONLY supports windows 8.
Proud Supporter of the JIDF,EDL,JEDL