Unable to boot

[balasubramaniam.r.2010.ece]

I used Windows 7 and then install Ubuntu 14 last week I deleted Ubuntu 14 from disk management directly with some Google assistance after deleting i combined the drive i have Ubuntu and my E drive it was fine bu when I restarted my computer

I received "error file system Grub error", I tried with all steps from Ubuntu (ls) to identify the drive and boot my window but unable to fix it tried with Windows Os to repair it but boot not happening from USB or DVD

Need some expert assistance i nees my data and back to Windows

 

[balasubramaniam.r.2010.ece]

MERGED QUESTION
Question from balasubramaniam.r.2010.ece : "Grub error entering rescue mode unknown file system"

I tried to boot Windows 7 unable to boot I just wanted to boot my system need solution to fix Grub error entering rescue mode unknown file system

If not able to fix lastly at least I need my data from system and reinstall Windows back is ok

The issue started when I deleted Ubuntu 14 from disk management directly and clubbed E and F drive in disk management directly after which when I rebooted my system I received error Grub error entering rescue mode unknown file system
I tried with USB and DVD with Windows and Ubuntu just to repair it but unable to boot from DVD or USB checked boot setting no use

 

[popatim]

MERGED QUESTION
Question from balasubramaniam.r.2010.ece : "Same error message"

I tried with Windows Os and Linux both with USB and DVD still not fixing the issue unable to boot with USB or DVD even after checking the boot setting.

I have lots of valuable Data in it i want to retrieve and re install the data or need to fix the issue i tried ls command and tried all the hd option still found file system not found

 

[popatim]

MERGED QUESTION
Question from balasubramaniam.r.2010.ece : "Grub error entering rescue mode unknown file system"

I tried to boot using Windows os in both USB and DVD still facing the same error

I actually deleted Ubuntu 14 from disk management directly after which when I rebooted the system I am facing the error

Are you trying to do a completely fresh install?

I've ran into weird issues like this myself where windows wouldn't run via USB to install, so what i did is actually loaded up ubuntu VIA usb... not to install it, but just to go to the screen of where you partition things. I deleted every partition there so it was a completely empty drive and then shut down the computer and inserted the windows USB drive to install windows. If there's nothing left on the drive it shouldnt come back with the grub error.

 

[popatim]

I merged all your threads and then moved this to the Open Source software forums for our experts here to help assist in the linux grub issue you are having.

 

[Alabalcho]

Deleting Linux partitions deleted files necessary for boot manager to function. Boot from Windows installation DVD/USB, and repair boot.