Root ur galaxy y from ur device so easily...
1. First download root galaxy y.zip below
Download
Or
http://db.tt/o9muSpsO
2. Then move to sd card root directory, not to any foldler...
3. Turn of ur phone
4. On ur phone by recovery mode, just hold vol+,home and power button together to on ur phone.
5. In this case ur phone touch is not workin...
6. Select update from sd card by volume up or down button and select it by pressing home button to complete.
7. And select reboot to boot ur device.
8. It just restart and enjoy...
To unroot ur device download this zip file and maintain the same procedur above...
Please click the link to download unroot galaxy y.zip
Please mention if u root ur device it may void ur waranty and do it ur own risk i am not responsible for any damage.
Thank u.