I ran a scan with command prompt and got the following answer:
Microsoft Windows [Version 6.3.9600]
© 2013 Microsoft Corporation. Med ensamrätt.
Beginning system scan. This process will take some time.
Beginning verification phase of system scan.
Verification 100% complete.
Windows Resource Protection found corrupt files but was unable to fix some
of them. Details are included in the CBS.Log windir\Logs\CBS\CBS.log. For
example C:\Windows\Logs\CBS\CBS.log. Note that logging is currently not
supported in offline servicing scenarios.
The file it's refering have I attached.
I don't think I have the installation disc, will look it further.