It was solved by my granddad waiting for about 10 minutes, and then suddenly the icons appeared! This enabled him to access the add/remove folder in control panel, and remove the program.
He then re-installed windows using a version that he obtained from a previous pprune thread regarding his computer, and everything was back to normal.
He did change his credit card number, however, with the company incase of fraud, seeing as it seems to be a fradulant company.
Dan