Why is there almost always pop-ups when i click on something?

[poytatotayters]

(My computer has no antivirus, so this may be troubling), But when I click to sign in, I often get a pop-up to gross websites, or websites that try to tell me my flash player is outdated. Is there any way to stop these? Thanks, and sorry for the lack of info.

[G4RG0YLE]

These are pop-up ads, and it is advised that you do not follow any of the links they provide you wish or click on any of the content that can be seen. Sadly, the Staff have no control over what ads do come up occasionally. Therefore, just make sure you close the tab and continue browsing/signing in. c: You could also try using 'AdBlock' to stop seeing these malicious websites.

[Kuri]

That should only have one pop up off the home page once in 4 hours.  Not every time you click something.

[Fantasia]

If you don't use any Anti-virus program, then yes there will easily come issues and pop-ups.
Get a Anti-virus program. From what I learned in IT class in my boarding school, I highly suggest you go and install the latest version of CCleaner. I know I sound like an annoying advertiser in this sentence but; Please trust me, I have been using CCleaner myself for years now, and it has never created any issues nor being useless. It destroys malware and blocks spyware and all that virus stuff. It will also block the 'gross sites' you're mentioning.
Go on google search and type in "CCleaner", then just click the first that leads to the CCleaner's homepage, you'll get to the correct download. I can assure you it's a free downloadable program, and I think it will take you no more than 5 minutes to get it.

I hope this works for you! If it removes the ads, you'll be able to sign into FH without interruption, and you can click as much as you wish<3