Iis – How to resolve HTTP Error 503. The service is unavailable on IIS7

503-erroriisiis-7permissions

I'm getting a 503 error when trying to access the localhost web site on my Windows 7 machine. When I look in the event log I'm getting a load of errors along the lies of:

Windows cannot copy file \\?\C:\Users\Default\{979ea7af-5041-4710-838e-f2a62d4ddad2}\symimv.cat to location \\?\C:\Users\TEMP.IIS APPPOOL.001\{979ea7af-5041-4710-838e-f2a62d4ddad2}\symimv.cat. This error may be caused by network problems or insufficient security rights. 

 DETAIL - Access is denied.

I have not touched the security permission on this DIR, has anyone any idea what might have caused this & how to resolve it? It seems to have started after doing a large number of windows updates last night.

Best Answer

It looks like the temp IIS profile that is used (normal for IIS) can't be created. I bet you will have the same issue if you create a new user and try to use it. In other words, the root issue is not related to IIS. I don't know what symimv.cat is, but nothing turns up on a google search. Is that something custom that you or your corporate team have installed?

In other words, it sounds like something amiss with your default user profile.