Okay...This Is Strange

For the last few days, my Windows 7 Pro has lost its East Asian Language Support. Which means, among a few things, I can't translate the titles of dozens of anime soundtrack songs I have loaded onto WinAmp. The foreign characters display fine on Internet Explorer and other programs, but not on internal Win7 functions like directories and filenames. They don't display in Notepad either.

Windows Update isn't as functional in Win7 as it was in previous versions of Windows. I don't know what I should do about this. I'm not sure I still have the master disks for the OS--Computer King has the nasty habit of just installing the OS and keeping the disks.