Hi SpikeyBill, 0×800f0900 CBS_E_XML_PARSER_FAILURE unexpected internal XML parser error.

After update of KB958484 and kB953595 of Hotfix for Microsoft .NET Framework and reboot of system all the profiles were lost.

Start a free Windows Update support incident request: [link] Support for Windows Update: [link] For more information about how to contact your local …

Well Barney, you are a user that apparently is quite
knowledgeable of computing and will take measures
to secure your PC. But what about those users who
are not so computer literate and haven’t a clue
about securing …

Suggest you post to a reputable anti-malware to receive assistance in removing Vundo. Please read the guidelines of the forum of your choice prior to posting there: …