hello, sir

                  Recently i had an another OS in my laptop , dual boot with windows 8.1 single language. later  i had done my work with that OS and from windows 8.1  i have deleted the partition of that OS. but still that OS exist in boot . i have tried several methods to remove that OS from boot. but unfortunately i was not able  to remove that OS from boot.

so i have tried to do some changes in msconfig . i had change the boot setting and enable some extra boot option, after that my laptop restart and its just showing a blue empty screen with shutdown and restart option , on right below corner of the screen. since i have also deleted my recovery partition earlier , so i am not able to open  CMD or refresh or reset my windows 8.1 OS. i have also tried to boot from windows 8.1 OS from EFl but it was unsuccessful . and also tried to change some setting in bios, but nothing works. its just a blue screen

please help me. and give me the solution.                                                                                              Than

thank you sir, it works. after booting in safe mode  my windows 8.1 OS works fine. but still i am having other os in my windows boot manager,since its partition is deteted. and as you told to detete from msconfig their is no os in msconfig.in msconfig only windows os is showing. let me explain in detail.

i have deleted the partition of that os(Ubuntu os). so when i start me laptop their is no option available for selecting OS,windows 8.1 start automatically. but when i press  esc key and then F9 key to open boot option then i can see two OS ie windows and unbuntu. i dont wanted to see that os anywere.

so please sir tell me the solution... Thank you