I'm a computer tech and with all viruses we remove the hard drive and slave it to antother machine. We then scan the hard drive with a variety of antivirus and malware scanners. Once done we put it back int he machien and again run scans which generally then pickup the various registry entries.
The Windows Store is new and as such can't compete with the likes of other online stores. Give it a bit for developers to catch up and it will get better.
We have also put together a intro video on the Windows 8 store. Let em know what you think:
Windows 8 Store Overview - YouTube -...