Can only open Network Files through application

Sounds like the file association has become corrupted or has been set wrong.  This could be done by malware etc.  However one would think that this would only happen to a particular file type and not all of them unless it's been some type of malware from the internet.  Open Start Menu, Programs, Accessories, Windows Explorer, then on the menu open Tools, select Folder Options, then click on File Types find the type of file he is trying to open and make sure that it is the right program.  doc = Microsoft Word, xls=Excel, pdf=adobe acrobate reader etc.  If this was done through some type of malware, whatever did it may just put it back.  You just said 'can't open them' when he navigates to them.. what happens when he tries?  If it's too jacked up, you may need to reload the machine as their are hundres if not thousands of file types associated with programs if I'm guessing right.  Since I don't know what DOES happen when they try to open them I'm just having to guess.  If this isn't it, try posting what happens when he/she tries to open the files.

Hi,

thanks for your feed back. The files do eventually open but it just takes a very long time. There are no warning messages as they do eventually open also the PC does not hang at all

. Yet when using File>Open from an app they are the normal speed opening a file over a network.