i use Sharepoint 2010 as farm server .. every thing was good .. but suddenly i get this error . when i want to attach a file to new item in every list .
Error text:
invalid file name the file name you specified could not be used . it may be the name of an existing file or directiry ,or you may not have permission to access the file .
i get this error in every site collection and all the list . i find out the server accept file near 1kb , 2 kb till 20 kb . relay don't have any idea . i check free space of C drive in server and i have enough space .
the size of attachment is Doubtful . i check content data base of site collection .. it's just near 5 GB , i estimate the size by get backup of sitecollection ...
any other way . there isn't any programing . any web part .. just i use sharepoint wizard to add new item with attachment
plz help what's happen to my server ???