Solved: bootmgr is missing press ctrl+alt+del to restart

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This error indicates that the boot sector is damaged or missing.

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Resolution

To fix this, use the following methods to troubleshoot this Windows Start error.

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chú ý To complete these steps, you must have sầu a Windows 8.1, Windows 8, Windows 7 or Windows Vista installation disc. If you vày not have a disc, please contact your computer manufacturer or wpuonline.com wpuonline.com khổng lồ obtain one. If you vì chưng not have an installation disc & Startup Repair is a preinstalled recovery option on your computer, try method 4.

Method 1: Run Startup Repair from Windows Recovery Environment (WinRE)

To run Startup Repair from the Windows Recovery Environment (WinRE), follow these steps:

Insert the Windows installation disc into the disc drive, and then start the computer.

Press a key when the message Press any key to lớn boot from CD or DVD appears.If your PC does not detect the truyền thông media automatically

During the restart process, read the screen for any instructions that explain how to lớn interrupt normal startup and enter the basic input/output system (BIOS) thiết đặt utility. Most PCs use the F2, F10, ESC, or DEL key khổng lồ begin the BIOS Setup.

Look for a tab in the BIOS Setup Utility that is labeled Boot Order, Boot Options, or Boot. Following the directions on the screen, use the arrow keys to lớn go to lớn the Boot Order, then press Enter.

Locate the CD, DVD, or USB flash drive sầu (this might be called Removable Device) in the Boot danh mục. Following the directions on the screen, use the arrow keys to move sầu the drive up so that it appears first in the Boot các mục. Press Enter. The boot order sequence is now changed khổng lồ boot from the CD, DVD, or USB flash drive sầu.

Press F10 lớn save your changes và to lớn exit the BIOS Setup Utility. Select Yes in the confirmation window. The PC will restart.

Select a language, a time và a currency, a keyboard or đầu vào method, & then select Next.

Select Repair your computer.

In the System Recovery Options dialog box, select the drive of your Windows installation, & then select Next.

At the System Recovery Options dialog box, select Repair your computer.

Select the operating system that you want lớn repair, và then select Next.

In the System Recovery Options dialog box, select Startup Repair.

For more information about System Recovery Options, see What are the system recovery options in Windows?For more information about Startup Repair, see Startup Repair: frequently asked questions.

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:

Put the Windows installation disc in the disc drive, & then start the computer.

Press a key when the message Press any key to lớn boot from CD or DVD appears.If your PC does not detect the truyền thông media automatically

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) thiết đặt utility. Most PCs use the F2, F10, ESC, or DEL key khổng lồ begin the BIOS Setup.

Look for a tab in the BIOS Setup Utility that is labeled Boot Order, Boot Options, or Boot. Following the directions on the screen, use the arrow keys khổng lồ go lớn the Boot Order, then press Enter.

Locate the CD, DVD, or USB flash drive (this might be called Removable Device) in the Boot các mục. Following the directions on the screen, use the arrow keys to move sầu the drive up so that it appears first in the Boot menu. Press Enter. The boot order sequence is now changed khổng lồ boot from the CD, DVD, or USB flash drive.

Press F10 khổng lồ save sầu your changes and to lớn exit the BIOS Setup Utility. Select Yes in the confirmation window. The PC will restart. Allow the PC to restart normally. The scan will take a few minutes and remove sầu any malware that may be infecting your computer.

Select a language, a time, a currency, a keyboard or another input đầu vào method, và then select Next.

Select Repair your computer.

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Select the operating system that you want khổng lồ repair, & then select Next.

In the System Recovery Options dialog box, select Commvà Prompt.

Type Bootrec /RebuildBcd, & then press ENTER.

For more information about how khổng lồ use Bootrec.exe, see How to use the Bootrec.exe tool in the Windows Recovery Environment lớn troubleshoot & 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:

Insert the Windows installation disc into lớn the disc drive sầu, & then start the computer.

Press a key when the message Press any key to boot from CD or DVD appears.If your PC does not detect the truyền thông automatically

During the restart process, read the screen for any instructions that explain how lớn interrupt normal startup và enter the basic input/output system (BIOS) thiết đặt utility. Most PCs use the F2, F10, ESC, or DEL key khổng lồ begin the BIOS Setup.

Look for a tab in the BIOS Setup Utility that is labeled Boot Order, Boot Options, or Boot. Following the directions on the screen, use the arrow keys to lớn go to the Boot Order, then press Enter.

Locate the CD, DVD, or USB flash drive sầu (this might be called Removable Device) in the Boot menu. Following the directions on the screen, use the arrow keys khổng lồ move the drive sầu up so that it appears first in the Boot menu. Press Enter. The boot order sequence is now changed to boot from the CD, DVD, or USB flash drive.

Press F10 lớn save your changes và to lớn exit the BIOS Setup Utility. Select Yes in the confirmation window.

Select a language, a time và currency, and a keyboard or đầu vào method, & then select Next.

Select Repair your computer.

In the System Recovery Options dialog box, select the drive of your Windows installation, & then select Next.

In the System Recovery Options dialog box, select System Restore.

Follow the System Restore Wizard instructions and select the appropriate restore point.

Select Finish to restore the system.

For more information about how khổng lồ 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 computer

Important This method is available only if Startup Repair is a preinstalled recovery option on your computer.If you bởi not have a Windows installation disc, and Startup Repair is a preinstalled recovery option on your computer, follow these steps lớn repair startup files:

Remove sầu all floppy disks, CDs, và DVDs from your computer, và then restart your computer by using the computer"s power button.

If your computer has a single operating system installed, press and hold the F8 key as your computer restarts. You have sầu khổng lồ press F8 before the Windows logo sản phẩm appears. If the Windows logo sản phẩm appears, you have sầu to try again by waiting until the Windows logon prompt appears, và then shutting down and restarting your computer.

If your computer has more than one operating system, use the arrow keys to lớn highlight the operating system that you want lớn repair, and then press and hold F8.

On the Advanced Boot Options screen, use the arrow keys khổng lồ highlight Repair your computer, & then press Enter. (If Repair your computer isn"t listed as an option, then your computer doesn"t include preinstalled recovery options, or your network administrator has turned them off.)

Select a keyboard layout, và then select Next.

Select a user name, type the password, và then select OK.

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On the System Recovery Options menu, select Startup Repair. Startup Repair might prompt you khổng lồ make choices as it tries lớn fix the problem và, if it is necessary, it might restart your computer as it makes repairs.


Chuyên mục: Tin tức