It definitely sounds like there's some malware on your computer. Clicking on any of those links offered to you will probably result in your computer being rendered useless.
Download, install and run the free version of Malwarebyte's Anti-Malware:
https://www.malwarebytes.org/antimalware/
(NB: Towards the end of the installation process you'll encounter a panel with two pre-ticked boxes. One of those ticks is next to an option to install a free trial of the 'Premium' version of the program. CLICK TO REMOVE THAT TICK!).
Don't be surprised if a scan takes a long time to complete; that's normal. When it finishes, it will probably have identified malware. Click the option to 'quarantine' it.