Having trouble with the “Bootmgr Absent” error in Windows 7 and don’t have a CD to fix it? This article will show you how to resolve the issue without the need for a CD.
Verify USB Devices and Boot Order in BIOS
To fix the Bootmgr Absent Error in Windows 7 without a CD, you can start by verifying the USB devices and boot order in the BIOS. First, make sure that the USB flash drive or any other external devices are not causing the issue.
Step 1: Start by accessing the BIOS on your computer. This is usually done by pressing a specific key during the boot process, such as F2, F10, or Del. Look for the key to press on your computer’s startup screen or in the user manual.
Step 2: Once in the BIOS, navigate to the boot order settings. This is where you can specify the sequence in which the computer looks for bootable devices.
Step 3: Ensure that the USB device you are trying to boot from is listed in the boot order. If it’s not, you may need to add it to the list.
Step 4: Adjust the boot order so that the USB device is set as the first boot option. Use the arrow keys to move the USB device to the top of the list.
Step 5: Save the changes and exit the BIOS. This will restart your computer and attempt to boot from the USB device.
By verifying the USB devices and boot order in the BIOS, you can ensure that your computer is attempting to boot from the correct device, which may help resolve the Bootmgr Absent Error in Windows 7 without the need for a CD.
Utilize System Repair Tool
To utilize the System Repair Tool to fix the “Bootmgr Absent” error in Windows 7 without a CD, you can follow these steps:
1. First, start your computer and press the Esc key or F8 key repeatedly to access the Windows Boot Manager.
2. Use the arrow keys to select the “Launch Startup Repair” option from the menu.
3. The System Repair Tool will then begin diagnosing your computer for any issues related to the boot process.
4. Follow the on-screen prompts to complete the repair process.
5. Once the repair is complete, restart your computer and check if the “Bootmgr Absent” error has been resolved.
Rebuild Master Boot Record and Boot Configuration Data
To rebuild the Master Boot Record (MBR) and Boot Configuration Data (BCD) in Windows 7 without a CD, you can use the Command Prompt to access the necessary tools and commands.
First, you will need to boot your computer from a USB flash drive or a recovery disc. Once the computer has booted from the USB or disc, select the language and keyboard input method, then click “Repair your computer” at the bottom left of the window.
Next, choose the operating system that you want to repair, and then select “Command Prompt” from the System Recovery Options menu. Once the Command Prompt window opens, you can begin rebuilding the MBR and BCD.
To rebuild the MBR, type the following command into the Command Prompt:
bootrec /fixmbr
Press Enter after typing the command to execute it. This command will repair the MBR on your computer.
After rebuilding the MBR, you can also rebuild the BCD by typing the following command into the Command Prompt:
bootrec /rebuildbcd
Again, press Enter after typing the command to execute it. This command will scan for Windows installations on your computer and allow you to add any that are missing to the BCD.
Once you have executed these commands, you can exit the Command Prompt and restart your computer to see if the “Bootmgr absent” error has been fixed. If the error persists, you may need to seek further troubleshooting or use a Windows installation CD to repair the MBR and BCD.
Activate the System Reserved Partition
First, you will need to access the Command Prompt. To do this, boot into the Windows Recovery Environment by restarting your computer and pressing F8 before the Windows logo appears. Then, select “Repair your computer” and choose the Command Prompt option.
Once in the Command Prompt, type diskpart and press Enter to open the DiskPart tool.
Next, type list disk and press Enter to display a list of all the disks on your computer. Identify the disk number that contains the System Reserved Partition.
After identifying the disk, type select disk X (replace X with the correct disk number) and press Enter.
Then, type list partition and press Enter to display a list of all the partitions on the selected disk. Identify the System Reserved Partition.
Once you have identified the partition, type select partition Y (replace Y with the correct partition number) and press Enter.
Finally, type active and press Enter to activate the System Reserved Partition.
After completing these steps, restart your computer and the System Reserved Partition should be activated, fixing the Bootmgr Absent Error in Windows 7 without the need for a CD.
