Originally Posted by
Silent
Download anti-adware software. If that doesn't work, look through background processes to see if you find anything suspicious. If you find something that looks odd or out of place (or without a signed signature) open it in file explorer and scan it with an online anti-virus scanner and see the detection ratio. if there are a lot of detected viruses, delete (or quarantine) the file on your HDD and restart your computer. if that don't work, your best bet would be to take your computer to a physical computer shop to take a look at it, because judging from your summary of the malware, you wouldn't be able to manually remove it.