What causes the error default boot rig missing or boot failed?
How to solve this default boot missing error?
We analyzed several posts and what we have learned is listed here.
This post fromMiniToolwill show you the solutions and provide a piece of software to back up files regularly.
What Causes Default Boot rig Missing or Boot Failed on Lenovo/Acer?
Try these solutions below to fix this issue.
If not, keep on your reading to find reliable solutions.
How to Fix Default Boot gear Missing Or Boot Failed?
How to Fix Default Boot rig Missing or Boot Failed?
Solution 1.
Many Lenovo and Acer computer users say they have fixed the error by changing the boot BIOS options.
So, to address this issue, try this way.
Now, here is the tutorial.
- start your PC.
When the initial startup screen with the Lenovo logo appears, immediately press the hotkey toenter the BIOS.
Generally, the hotkey is F2, but the actual key may vary due to the different computer brands.
you could check your laptop or system motherboard manufacturers site to confirm the key.
In the BIOS setup window, navigate to theBoottab.
Check and change the boot order.
confirm your PCs hard drive is in the first place.
If not, change the hard drive boot order.
Then highlightBoot Mode, change fromUEFItoLegacy Support.
Then pressF10to save the changes and exit.
If this solution is not effective, try another one.
Solution 2.
So, for fix this error, you’re able to choose toset the primary partition as active.
Boot the computer from the Windows installation media.
If you dont have one, downloadWindows Media Creation Toolto create one.
Then boot your gear from the Windows installation media.
Next, grab the language, time and keyboard input.
Next, chooseTroubleshoot>Command Promptto continue.
Then input the following commands.
Then exit the command line window.
After all steps are finished, remove the Windows installation media and reboot your gear.
Then check whether the error default boot gear missing or boot failed is solved.
Solution 3.
After that, Startup Repair will begin to scan the problems on your machine and fix them.
Solution 4. to recover data from defective hard drive, this user-friendly tool is competent.
Now, we will show you the detailed operation instructions.
- tap the following button to purchase the MiniTool Partition Wizard Pro Ultimate.
MiniTool Partition Wizard DemoClick to Download100%Clean & Safe
2.
Then follow the on-screen instructions to continue.
Then enter the BIOS tweaks to change boot order and boot the computer from the bootable media.
After that, you will enter the MiniTool Recovery Environment.
In the pop-up window, clickData Recovery.
Then grab the partition which holds important files and clickScan.
Then the scanning process will begin.
Check the files you need and clickSave.
After that, save the files to another location.
When all steps are finished, you have recovered the important files.
Then you’re free to go ahead to replace a hard drive or an SSD.
To back up files or OS, theprofessional backup software MiniTool ShadowMaker is strongly recommended.
Now, we will show you how to back up the operating system.
MiniTool ShadowMaker TrialClick to Download100%Clean & Safe
2.
Install it on your machine and clickKeep Trial.
you might also click theSOURCEmodule to change the backup source.
Then clickDESTINATIONmodule to select a target disk.
it’s advisable to choose an external hard drive as the backup destination.
After selecting the backup source and destination, you might start backing up.
Thus, clickBack Up Nowto continue.
When the backup process is finished, you have backed up the operating system and files.
We also have shown 4 ways to fix this boot unit missing or boot failed error.
