Windows 10 Boot Repair: How to Fix UEFI Boot in Windows 10/8/7 - EaseUS

Creare una chiavetta usb di boot con windows 10 in GPT!

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Use Diskpart to Fix UEFI Boot Error in Windows 10 If you are a Windows 10 or 8 user and you prefer free methods to fix UEFI boot error, you may follow below two solutions to solve this issue now:

1. Enter Command Prompt from Advanced Options Step 1. Insert Windows 10/8/7 installation disk or installation USB into PC > boot from the disk or USB.

Step 2. Click "Repair your computer" or hit F8 at the install now screen.

Step 3. Click "Troubleshoot" > "Advanced options" > "Command Prompt".

2. Run Diskpart to Set Partition ID and Assign a Drive Letter Step 1. Type below command and hit Enter each time:

diskpart list disk sel disk 0 Run Disk Part to start fixing UEFI error.

Step 2. When the message "Disk 0 is now the selected disk" shows up, type list vol and hit Enter.

Select disk and volume to set volume ID.

Diskpart will now show the full list of volumes on your PC, find UEFI volume from the list: UEFI partition will be on Volume 2.

Step 3. Type below command and hit Enter each time:

sel vol 2 set id=c12a7328-f81f-11d2-ba4b-00a0c93ec93b Or SET ID=ebd0a0a2-b9e5-4433-87c0-68b6b72699c7 Set volume ID to fix volume id.

Step 4. Assign the drive letter by typing below command and click Enter:

assign letter=G: (Note: G shall be a unique drive letter which cannot be already used.) Change drive letter of your selected partition.

3. Repair the Boot Record Step 1. Open Command Prompt as an administrator, enter below command: cd /d G:\EFI\Microsoft\Boot\ (Note: G is the drive letter you signed to UEFI partition and remember to replace G with UEFI's partition letter) Repair boot record on UEFI disk.

Enter exit when the process completes. Step 2. To repair the Boot Record, open CMD and enter below command line: bootrec /fixboot Fix boot record command.

Enter exit when the repair process completes. 4. Rebuild the BCD Store Step 1. Type each command line and hit Enter each time:

ren BCD BCD.old bcdboot C:\Windows /1 en-us /s G: /f ALL (Note: c:\ is the drive where Windows 10/8.1/8 is installed on.) Rebuild BDC store on UEFI.

Step 2. Type exit in Command Prompt when the process completes and then restart your PC.

Now UEFI boot is fixed, and Windows 10/8/7 can be boot up on your PC again.