The first is commonly related to problems with scripts, and the second can only be caused by scripts or automation plugins.
The only script I run is Image Processor - to convert images to full size JPEGs - but have never encountered an error and they have all successfully completed. Strange
Could you be running some event scripts, or automation plugins (especially third party)?
I'm getting the USheetSelection.cpp : 260 : REQUIRE failed
in the error log and I can't save anything
I haven't changed anything
but my list of recent files has disapearred
CS6 extended photohop not working
Hello, are you sure that you are running the latest version? It should be 18.104.22.168 20130522
Did you try to install it on your startup disk? Installing apps on another drive to recover them in case of a windows crash is more akin to superstition, given that the required registy entries would be lost.