EFI USB device has been blocked by the current security policy - Fix
EFI USB device has been blocked by the current security policy, fix. When I try to boot from USB device Windows boot manager error appears: USB device has been blocked by the current security policy.
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Steps to fix a Boot error: EFI USB device has been blocked by the current security policy
You need to enter bios and disable secure boot.
1. Enter bios windows 10.
a) Restart your computer and use the boot key (BIOS function key) to enter the BIOS, it’s usually: F2 or Fn + F2 for Lenovo, for other Manufacturer it’s maybe F2, DEL, or F12.
b) Enter to bios by Restart your computer and hold the Shift key until you get to the Windows Advanced startup options menu, then Click Troubleshoot, Go to Advanced options and Click UEFI Firmware Settings and Choose Restart.
c) Or follow the steps to open the Windows Advanced startup options menu: Click on the Windows icon and go to Settings, Click on Update & security, then go to Recovery sand click Restart now, Click Troubleshoot, Go to Advanced options, Click UEFI Firmware Settings, and click Restart.
When the BIOS setup utility interface is open, Go to Security Tab, Find Secure Boot and Disable it:
Select the Secure boot option hit enter, choose Disable to disable Secure boot.
Note: If Secure boot is greyed out and you cannot make changes
Just Set Administrator Password or Supervisor Password.
Then Change the Secure boot option, and then you can reset the admin password by default.
Hit F10 on your keyboard and then click yes, to save changes and exit the BIOS.
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This video-tutorial attempt to answer all the below questions:
How to fix USB device has been blocked by security policy?
How to fix EFI USB device has been blocked by the current security policy?
How to boot from USB drive windows 10?
How to fix Windows Boot Manager has been blocked by the current security policy?
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How to disable secure boot in bios Lenovo?
How to resolve UEFI USB device has been blocked by the current security policy Lenovo?
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