I cannot access the web - every time i try to access i receive a varity of alert messages and then asking me to buy Vista Anti-Spyware 2011 ALERT

Hi, The notifications you have been receiving are symptomatic of a malware infection on your computer. You could try removing it using Malwarebytes (download here). Alternatively, you could use the Sysinternals suite. Mark Russinovich has an excellent tutorial on it here. I have removed this from a number of computers recently and the latter approach has proven the most successful. Hope this helps, Cathal Cathal O'Brien BSc, PgDip, PhD . Techsmart Computer Repair