hope someone can help
I'm using a laptop running Vista home premium SP2. My browser is IE9. I have been using MSE as my anti virus software. Approx 2 weeks ago I instructed MSE to run a full scan rather than a quick scan (which it is set to do every 24hours). This detected several threats which it removed/deleted/cleaned. However I then realised that my windows firewall couldn't be started through the Security Centre. I noticed it was missing when I ran "services". Looking at various sites I did something in the registry and installed a fix from the microsoft site which fixed the problem. Everything seemed to be fine and security centre showed everything working as it should.
However today I tried to download a catalogue from a website and got the message "file contained a virus and was deleted". I've tried to download several files. It doesn't matter what file type it is (doc, ppt, xls, pdf, exe) I get the same error message.
I then looked at the security centre. Security centre is turned off and cannot be started by clicking the "turn on now" button .(error message is The Security Center Service can't be started).
i've tried to run Microsoft Safety Scanner and Kaspersky Security Scan but get the same download error described above.
I've also tried to download these using google chrome (I also have this installed) but it is also unable to download any files error message is "failed - virus scan failed"
When looking in services Security Center is not listed so I cannot start it from here.
Hope this is enough detail and someone can help