I've just upgraded to Windows 8.1. Well it seemed better than Windows 8 for the first few minutes. Then I discovered Autocad won't open. (Microsoft claim it's compatible - obviously I checked their Compatibility Center first).
I have Autocad LT 2013 version 18.104.22.168. I have done a full uninstall and reinstall of the application and service packs. There is no error message, the loading screen and status messages appear as normal, and then just before opening everything disappears.
Can anyone help - I really need to do some drawings tomorrow!!
Just to let you know I resolved this for now be refreshing back to Windows 8. I think the problem may be caused by the Autodesk licensing platform (it just seemed to me that software was crashing at the point where it would normally get the license).
In summary LT2013 has been fine for me on Windows 8, but DO NOT upgrade to 8.1 for now.