KrackHack

I first came across this problem when I was trying to install the Ubuntu 14.04 alongside windows 8...I installed it in legacy firmware while the windows was in UEFI  firmware this caused the problem and started showing all partition as deleted and I was not able to boot into the any system ... now moving on to the solution ..... Before procee ding further ..First try to repair it using official windows 10/8 live cd/thumbdrive. Try the below link for reference if you are doing it for the first time... How to repair/reset windows? If the repairing windows doesn 't solves the issue. And windows still doesn't boot up try the method 1. Method 1 : 1. make a windows bootable thumbdrive or use your recovery CD and follow this instructions. If you don't know how to make a bootable ... Follow this tutorial given below .. Link to make bootable pendrive/thumbdrive. 2. Now that your bootable thumbdrive is ready. Insert it and boot from it. If it doesn...

you don't have to move mountain here, just follow these simple steps..and let me know in the comments if there is any problem... Step 1: open "cmd" as administrator . Step 2: type "diskpart". Step 3: now type "list disk ". Step 3: "select disk 1"  choose your pendrive from the listed disks(note the disk number). Step 4: now type "clean". Step 5: "creat partition primary"  this will mark the pendrive as primary partition memory..which will be detected by the bootloader during the booting process.. Step 6: "select partition 1" Step 7: "active" Step 8: "format fs=ntfs quick" Step 9:"assign" Step 10: "exit" Step 11: now copy the windows distribution files to the pendrive directly. Note: All the texts in the double quotes are the command and you must perform it in the sequence.