This may or may not help others out:\n\nI had activated yesterday, and now after a little playing I received the\nabove error when logging on. When clicking the contact MS button, I am able\nto get Opera (my default browser) open by clicking "search knowledgebase".\nFrom here I was able to get Explorer.exe (c:\windows\explorer.exe) to load\nfrom Opera. This now gives me a task bar, etc. I am unable to open the\ncontrol panel to reactivate (It opens then closes very quickly). I do however\nhave a semi functional computer. Steps leading to this problem were an\nuninstall of Trend PC-Cillen 14 Beta trial, and an install of Kaspersky\nPersonal 22.214.171.1240. When I was able to get the task bar up, opened\nKaspersky, updated, then disabled Proactive defences. Rebooted, and all\nappears well.