When I delete a share it deletes my data as well

If I'm in my windows XP or Win7 and right click on a file and choose share, and sometime later right click on the shared folder and uncheck the shared box it does not delete the folder and files. I share and unshared on XP and Win7 all the time. So I don't know what you guys are talking about when you say its the same....its not. If I un-share on dashboard for my NAS it deletes the folder and contents...thats not the same as XP or Win7. Right click and choosing delete on XP or Win7 is not the same as simply un-sharing and having your files deleted.
Thank you guys for your responses anyway.

BTW......I done the factory reset on my NAS.....set it as Flex Raid JBOD.
And if you remember my system
READYNAS NV+ v2 with 4 3TB WD Red
RAIDiator 5.3
RAIDar 4.3.4
Setup as Flex Raid JBOD with 4 volumes c,d,e,f
Accessing console (dashboard) with firefox 18

After I did the factory reset and copied terrebytes of data back onto the NAS. I check the default shares and they were /c/Media and /c/Backup
I will say again I did not even play with the shares on dashboard....I did not delete, change the name, play with the actual folders, create any other shares...nothing.
And the shares changed from /c/Media and /c/Backup to /c/Media and /e/

So how is that possible? The machine shares changed by themselves.......Anyone know why???