IT TIPS
Keep antivirus updated.Scan your files regularly.
Scan your download file before open.
Pendrive must be scan before open.
Block any pop-up message due to some problem.
Be careful with your email attachment.
Do not open attachement from unknown sender mail.
Do no put your contact information any offer form/letter.
Beware of fake security warnings.
Beware of fake Windows Update Email.
You can set a MAC address filters for Wireless Security.
Remove your Temporary Internet files sometimes.