Answer:
If your computer has a virus, then there could be two reasons why: a. if a tab/window keeps popping up after you closed it, or b. if your computer got hacked and it has a malfunction such as not being able to click in a certain area (believe me, I have expirienced one) those are just two major reasons and effects on your computer having a virus, but you should talk to a tech expert (like me) about what specific things are happening :)
Answer:
1. Install Anti-Virus/Malware Software.
2. Keep Your Anti-Virus Software Up to Date.
3. Run Regularly Scheduled Scans with Your Anti-Virus Software.
4. Keep Your Operating System Current.
5. Secure Your Network.
6. Think Before You Click.
7. Keep Your Personal Information Safe.
8. Don’t Use Open Wi-Fi.
9. Back Up Your Files.
10. Use Multiple Strong Passwords.
Hope this helps:)