system showing grub rescue

[amit946]

By mistake I have deleted one disk partition and system showing grub rescue .
Plz help me to solve this problem.

[WAWood]

@amit946

Hello;

Allow me to welcome you to the HP forums!

I'm going to guess that, at one time, you had a Linux distro installed on this same PC -- as that is how GRUB got installed on it.

When Linux is installed in this situation, it installs some boot code in the Master Boot Record (MBR) of the drive, and installs the remaining GRUB code in the boot partition of the Linux OS.  That causes the PC to boot into GRUB automatically.

When you deleted the Linux partition(s), you left the MBR intact -- and it is STILL looking for the GRUB code in the Linux boot partition -- but that is gone, now.

You have to rebuild the MBR so it points to the proper Windows filesystem partition to boot Windows.

You will need access to a working PC for this step in order to create the media needed to repair your PC boot loader.

Once you have that, please download and create Win10 install media from this link: http://windows.microsoft.com/en-us/windows-10/media-creation-tool-install?ocid=ms_wol_win10

Note that when you go do download and build install media, the tool defaults to matching what is already installed on your PC (as in, Home for Home, 64-bit for 64-bit). While you CAN change these settings, do NOT. If you do, the resulting media will be different and will force you to enter a NEW product code!

Boot from the media you created, and follow the directions in this link: http://www.tenforums.com/tutorials/2294-advanced-startup-options-boot-windows-10-a.html

You will need to go to the Advanced Options screen and click on Startup Repair. You will probably have to run Startup Repair three times for it to fix all the boot loader problems.

When done, your PC should boot OK. If it does not, there is a more serious problem.

Good Luck