Windows Search Function returns file in 8.3 format

Bonjour everyone,
I'm having a strange behavior from Windows Search function in file explorer.

When I do a search (in certain directory, not all), I do find two results for the same file, one in extended naming (Here is my file.mp3) along with a second one (M01C~1.mp3).

Anyone knows the reason why I get this behavior and how to fix this?

An other question in regards to this situation, I found a way to completely disable the 8.3 format support in windows registry, is there any reason why I shouldn't?

P.S. I can share the doc I found if anyone wish for.

Thanks

For anyone who cares, I still don't know why I had some files reported in the old 8.3 format and why, after renaming them I got two results pointing to the same file in the search engine but I did reconfigured the index in the control panel and the 8.3 file quit showing.

I will go ahead and disable 8.3 format support in the registry.

I read about the 8.3 files at Symantec.com and it seems that it is harmless to deactivate it and it even helps to gain a little bit if performance. I am going to give it a try.

The NTFS file system keeps a short name for every file, to maintain compatibility with older operating systems. This setting is not required for a NetBackup master server. By disabling it, you decrease the number of I/O operations per file creation.

Enterprise Support - Symantec Corp. - Disabling Windows 8.3 file names

http://support.microsoft.com/kb/130694

Funny how you stumble upon the same problem twice to find out you already posted the solution for it more than a year before ;0) Thank you myself!