Looping of PREPARING AUTOMATIC REPAIR WITH BLUE SCREEN

:emotion-2:

If you're able to get Recovery page then click on advanced repairs options and then Troubleshoot.

:emotion-2:

Power on system and start tapping F8 key continuously for 30 seconds and then stop. Hopefully you'll "See Advanced Repairs Options". If you don't see it then repeat the process two more times.

Click on System Restore again:

If you aren't able to get the recovery page after 3 attempts of tapping F8 key then I suggest you close the lid (don't power off system), remove AC adapter, and then battery. Replace battery, adapter and then power on system. Hopefully you'll see the Recovery page.  

Click on Advanced options;

Click on System Restore:

Thanks for your advice LSUFAN51 ,but the recovery window doesn't pop up ,but after pressing F8 laptop responds loading and again the looping starts. Some other alternative please !!!!!

Pulkit22,

I found the information at the link below that may help you resolve the issue.

[Fix] System Thread Exception Not Handled BSOD Error in Windows 8 and 10

:emotion-2:

After you created bootable windows 10 drive then go to boot tab in BIOS and move flash drive first in order to boot the drive. In the windows setup, instead of clicking on Install Now, I suggest you click on Repair Your Computer, which will bring up the troubleshooting tools to help fix your computer.

:emotion-2:

Please try troubleshooting steps in  Dell-Jesse L link above, I'm hopeful it will stop the looping. However, if looping still occur then I suggest you create a bootable windows 10 drive. Please click on link below.

https://youtu.be/lJcXHZc8-So

https://youtu.be/lJcXHZc8-So

:emotion-2:

Just in case you need Dell Recovery Image:

http://www.dell.com/support/contents/us/en/19/article/Product-Support/Self-support-Knowledgebase/software-and-downloads/dell-backup-solutions/Media-backup

www.dell.com/.../Media-backup