Uniblue Registry Booster

If anyone can give me some help on this I would be very grateful.I first noticed that there was a "Google Update" asking me if I wanted to update. So I proceeded with the download. The last thing to download was the Adobe Reader 8 but unfortunately it could not download successfully this Adobe Reader 8. It mentioned something about not being able to locate the Adobe Reader 7.0.7 - Italiano.msi. Note,I am actually residing in Italy hence the "Italiano.msi" but my first language is English. So then I tried to locate this Adobe Reader 7.0.7 by going to Programmes and then to the "Adobe" file, where I discovered "Acrobat 7", then double clicked on "Active X", then double clicked on "Acro PDF.ITA , whereupon it told me it was impossible to open this file but that it can search the web to locate this programme. It took me to Windows File Association where it said it did not recognise the file. It told me to go to Windows Live Search. Information. Click here to Run a Free Scan for ITA Errors".It was here that I downloaded this "Uniblue Registry Booster". The Uniblue Registry Booster has detected 89 6errors in my files! It is asking me to repair it by clicking the button.Now I am really scared because I don't know if I have just introduced myself to a "gimmick" and to a virus!