I recommend you buy a good anti virus like Norton or Kaspersky.
No
These and other antiviruses are design with
the average user in mind, and will not protect your crypto at all. In fact some of them block public Electrum servers!
The average user is crypto-hostile, and the AVs are adjusted for that correspondingly. It may be that the AV trashes your operating system, only for you to find out your wallet was destroyed in the process, and it was one of those that don't use a seed phrase (or maybe never bothered to write it)