Since you know how to access the i386 folder you can run sfc /scannow, this scans all protected system files and replaces corrupted and incorrect versions with correct Microsoft versions. You appear to be knowledgeable about computers and probably know how to run this scan, but I will post instructions for running the scan for the benefit of others who read this and don't know how to do it.
During this scan you may be prompted to insert your installation disc in the DVD/CD drive, if you have this disc you will want to have it available before you start the scan. If you don't have this disc and are prompted for it you will need to follow the *instructions for locating the i386 file.
To initiate this scan go to Start> Run and type in sfc /scannow and then press enter.
If files are found during this scan which need to be replaced you may be prompted to insert your installation disc, do so at that time. If it doesn't ask you for the disc this means that it wasn't necessary to replace any files. In the event the the system asks you for the disc, you must visit Windows Update immediately after the scan is completed (Please note that there won't be any confirmation dialog - the program will just exit without telling you anything).
*If you do not have this disc you will need to locate a directory on your system which is named i386. You will need to search for this in the registry, to do this type in regedit in the Run box and then press Enter, you will see a screen similar to the one below.
To find this you will need to navigate to: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup
You will see the list of HKEY options, please notice the arrow to the left of the option, when you click on this arrow the menu will expand and you will be able to find the next step “SOFTWARE”, expand the menu on this option and proceed till you reach “Setup”. Under “Setup” you will need to find “SourcePath”. The SourcePath probably has an entry pointing to your CD-ROM drive, and that is why it is asking for the XP CD. All we need to do is change it to: C:\, to do this double click on the SourcePath, a box will open where you will make this change by typing in C:\.
Just curious, what is the make and model of this computer?
Edited by dc3, 06 March 2013 - 09:10 AM.