a strong password containing numbers, letters, uppercase and lowercase and if possible symbols one example would be He11o mY n@Me 1s Bob. Make sure you get genuine antivirus software because some are scams and are viruses themself like antivirus XP 2010. also try to change your password every month or so. one last one dont use any of the following because they are to obvious
-blank (none)
-the words "password", "passcode", "admin" and their derivatives
-a row of letters from the qwerty keyboard -- qwerty itself, asdf, or qwertyuiop)
-the user's name or login name
-the name of their significant other, a friend, relative or pet
-their birthplace or date of birth, or a friend's, or a relative's
-their automobile license plate number, or a friend's, or a relative's
-their office number, residence number or most commonly, their mobile number.
-a name of a celebrity they like
-a simple modification of one of the preceding, such as suffixing a digit, particularly 1, or reversing the order of the letters.
-a swear word