Can't log in to Windows 7

@severdsolo I was trying that too only to get the option.But whenever i choose safe mode with cmd prompt or repair ur computer options,few files are loaded and then again that login screen comes out instead of a cmd prompt...!!

@Macgyvr yeah i wanna say that the account might had disabled and there's no other account showing on the login screen except the one which has been locked..!! is there any oher way to do so !!

@severdsolo Well,i tried using my brains and your help finally and that really worked out for me...!!
I made a bootable Pen drive and then from their i used the repair command and then the command prompt to make visible that hidden account using the regedit.!! and voila !! m done !! :P
Thanx a lot sir !! i'm really grateful for your help !! Thanx Thanx Thanx !! :)

Well,now how i can hide that hidden administrator account again as i don't need it now !!

@severedsolo Well,I'm using Windows 7 home premiuim option and Local user and group Policy is disbaled in it !! What should i do now ??
Anyone other simple way from regedit ??

i reset my windows 7 password using ubuntu disk , load ubuntu up go to places , computer , c drive where win7 is installed , locate system32 go into that then find utilman.exe rename it to utilman.exe.old then find cmd.exe in the system32 folder cop it to the desktop , rename it to utilman.exe and place it back in the system32 folder , then restart into windows 7 when the password screen is up , click on ease of access in the bottom left corner it will bring a cmd screen up then type net user then net user ' account name ' and a * and hit enter twice , then just press enter in the password section , this worked for me , then create another password

edit : oh you fixxed it lol well this is another way :)

@deanolfc Thanx anyway for the help !!

Ohh yeah !! :) it worked !!
n finally all query solved !! Thanx sir !! thanx a lot !! :P