Windows 7: Please HELP me,

Hey help me, i hav hp mini netbook and used to dual book ubuntu and windows 7, i shrinked some partitions to make swap partition for ubuntu., but after restarting netbook error shows" grub rescue no such partition" ,, after this i tested system memory and hard disk and get 100 % ok,, but when i use bootable flash drive to install Windows 7, the setup window is not loaded, only loading and loading..., what may cause this? Is this hardware failure? What should i do? Please give me suggestion ...

It's not a memory problem, nor a disk problem.

Is Windows 7 still on disk? Why do you wanna reinstall Windows 7?
Why did you install grub in MBR instead of volume boot record?

Please answer those questions first

Btw.... only thing you did was shrinking partitions? What partition did you shrink? Did you cut space from left or right size of partition?

You did add partitions as well? I assume you created extra swap partition(?)

When seeing "grub rescue" type ls and press enter. What do you see?

Actually i already hav windows 7 on disk and still havent figure out how to install grub or MBR.., i hav cut partition from left side.,
anyWay i am happy to learn that it is not due to hardware failure.., all this scenario happened after making swap partition for ubuntu, am still regretting of that...@kaktus i cant get your technical words as i am not a computer geek,

just type: ls
when you see the grub rescue prompt. Of course press enter afterwards. What do you get as output?

unknown command "ls"

To start Windows 7:

Mark Win7 Partition Active

Then run Startup Repair - Run up to 3 Separate Times

Now you can add Ubuntu using EasyBCD (click Download - no Name or Email required)
Dual Boot Ubuntu - EasyBCD - NeoSmart Technologies Wiki

Wait wait i am sorry., when i type ls in grub rescue
i got:

(hd0) (hd0,msdos5)(hd0,msdos4)(hd0,msdos3)(hd0,msdos2)(hd0,msdos1)

bro
I cant boot up any windows for system recovery..,whenever i want to install os , the installer stuck at splash screen.