Cách fix lỗi bootmgr is missing tren window năm 2024
During the restart process, read the screen for any instructions that explain how to interrupt normal startup and enter the basic input/output system (BIOS) setup utility. Most PCs use the F2, F10, ESC, or DEL key to begin the BIOS Setup. Show
Method 2: Rebuild the boot configuration data (BCD) from Windows Recovery Environment (WinRE)To rebuild the boot configuration data (BCD) from Windows Recovery Environment (WinRE), follow these steps:
For more information about how to use Bootrec.exe, see How to use the Bootrec.exe tool in the Windows Recovery Environment to troubleshoot and repair startup issues in Windows. Method 3: Run System Restore from Windows Recovery Environment (WinRE)Important This method requires that System Restore is enabled on your computer. To run System Restore from Windows Recovery Environment (WinRE), follow these steps:
For more information about how to use System Restore, see System Restore: frequently asked questions. Method 4: Use Startup Repair on a computer that has a preinstalled recovery option on your computerImportant This method is available only if Startup Repair is a preinstalled recovery option on your computer. If you do not have a Windows installation disc, and Startup Repair is a preinstalled recovery option on your computer, follow these steps to repair startup files:
On the System Recovery Options menu, select Startup Repair. Startup Repair might prompt you to make choices as it tries to fix the problem and, if it is necessary, it might restart your computer as it makes repairs. |