Virus can damage all window software in a minute. You must find or download anti virus software to install in your computer in order to protect all the program in your pc.
On the internet you can find the many type of anti virus software to setup in your pc in anytime. You can buy antivirus online by paying credit card, master card and other card. But if you use for personal only you can download free anti virus software that show on internet.
When you buy anti virus from internet they will give you a license and this license can update a new version for you everyday.
Anti virus can catch the new virus that is going to damage your program in your pc. When the virus run into your computer, meanwhile your anti virus software will catch and show you immediately.
Anti virus can run to your pc too fast during you are using internet or you copy file from other computer and past to yours, that’s why you really don’t know that virus will damage your program in a minute.
So the best way for you, you should download any anti virus from internet or buy license to install through your computer.