Dad Fell For A “Tech Support” Scam

I first discovered the issue when I opened my dad’s laptop yesterday and I noticed that the taskbar looked a bit strange, with one extra row than normal. Upon closer inspection I noticed that there was a message that read: “Computer help 1-855-816-3635.” I googled the number and immediately realized that he was scammed. There is also a Notepad file on the desktop that is titled “COMPUTER HELP,” and include the same phone number along with the the names “Safe Tech Solutions,” and “InfraGraph Solution.” A quick google search reveals that these are indeed scammer organizations.