What causes the error that operating system loader has no signature?
How to fix this boot failure problem?
This post written fromMiniToolwill show you how to fix the error that operating system loader has no signature.
What Causes the Error That Operating System Loader Has No Signature?
This error also happens when the Windows is installed in the BIOS mode.
Solution 1.
Now, here is the tutorial.
After that, your setup will perform the hard reset and reset your setup to the factory reset setting.
you’re able to choose to factory reset Windows 7 to delete files and data on the computer.
This post shows you how to do that with top 3 ways.
Then the hard reset process will begin.
Solution 2.
Step 1: Turn off your system.
Then turn on it and press the setup key continuously toenter the BIOS.
Step 2: Then go to theExittab and highlight theLoad Setup Default.
Then pressF10to confirm and save the changes.
Solution 3.
Change Boot Sequence
If the above solutions do not work, you might try changing the boot sequence.
In this solution, it’s possible for you to try changing boot sequence.
Step 1: Press power button and the setup key continuously to enter the BIOS.
Step 2: In the pop-up window, go to theBootsection.
Step 3: Then select theLegacymode to continue and disable theSecurity Boot.
Solution 4.
Reset Windows
To solve the dell operating system loader has no signature, you might try resetting the Windows.
In general, resetting Windows all solve most system-related problems.
Step 1: Since your gear cant boot normally, a recovery drive is required.
If you already have one, just connect it to the computer and boot from it.
If you dont have, clickhereto create one.
Step 2: Then boot your setup from it and clickRepair your computerto enter Windows Recovery Environment.
Step 3: In the pop-up window, clickTroubleshoot>Reset this PCto continue.
Step 4: On the next screen, you will see theKeep my filesorRemove Everything.
wise to choose Keep my files.
Then you’re able to follow the wizard to continue.
if you run into the same issue, try these solutions to help out.
