When I open Word 2010, it gives me the message "Word could not create work file. Check the Temp environment variable" (in my local language). Effectively this means I cannot save any files. It won't give an error message about saving but it won't save either. The only way to close a file is to choose don't save. Upon closing the program, it also claims that changes have been made to the Normal template even when I haven't made any.
I've found various solutions online. I've already done the most obvious fix Microsoft recommends for this problem which is to check that the setting in Internet Explorer is correctly pointing to the Temporary Internet files folder. I've checked the registry for what it says under Cache, that information is correct. Another solution suggested to check the registry entry for AppData, but that was correct too.
I've also tried the Microsoft FixIt file for resetting user options and registry settings in Word, that did not help. I've tried repairing the install, no use. I uninstalled the entire Microsoft Office package and and then reinstalled it, but the problem is still there.
I have spent about ten hours on trying to solve this problem today, on a day when I had planned to work instead (I need Word for work). Any ideas for what I can do, short of purchasing a new computer?