Windows Boot Manager (BOOTMGR) is a small piece of software, called a boot manager, that's loaded from the volume boot code, which is part of the volume boot record. BOOTMGR helps your Windows 10, Windows 8, Windows 7, or Windows Vista operating system start.
Clearing the TPM can result in data loss. Clearing the TPM causes you to lose all created keys associated with the TPM, and data protected by those keys, such as a virtual smart card or a login PIN. Make sure that you have a backup and recovery method for any data that is protected or encrypted by the TPM.
Press the Surface power button for 30 seconds. Release the power button, then press and hold the power and volume up buttons simultaneously for 15 seconds. Release both buttons, then wait for at least 10 seconds. Press the power button as you usually would when turning it on.
The serial number of your Surface is printed directly beneath the word Surface under the kickstand on the back. It will display the model number for you. An alternative is to look it up on the device itself. Using Cortana, search on system information.
Here's how: Select Start > Settings > Update & security > Windows Update . Select Check for updates. If updates are available, they will install automatically.
How to Boot to UEFI Firmware Settings from inside Windows 10. UEFI (Unified Extensible Firmware Interface) is a standard firmware interface for PCs, designed to replace BIOS (basic input/output system). This standard was created by over 140 technology companies as part of the UEFI consortium, including Microsoft.
Press and hold the volume-up and power buttons until the Surface logo appears to enter the UEFI. Once there, choose your recovery USB drive as the primary boot device. Booting from the recovery drive gives you access to system repair tools that can often fix whatever ails the operating system.
UEFI (Unified Extensible Firmware Interface) is a standard firmware interface for PCs, designed to replace BIOS (basic input/output system). Many computers with UEFI firmware will allow you to enable a legacy BIOS compatibility mode. In this mode, the UEFI firmware functions as a standard BIOS instead of UEFI firmware.
A black screen with configuration options like Trusted Platform Module and Secure Boot Control. This is the Unified Extensible Firmware Interface screen (UEFI, formerly known as the BIOS). If you see this screen when you turn on your Surface, don't make any configuration changes.
Surface Pro
- Press and hold the power button on your Surface until the screen turns off (about 30 seconds), then release it.
- Press and hold the volume-up button and the power button at the same time until the screen turns off (about 15 seconds), then release both.
- After you release the buttons, wait 10 seconds.
To completely shut down Surface Pro 3 or Pro 4 and restart it, press and hold the Volume-up button and the Power button at the same time for 15 seconds and release both of them. The Surface logo appears, and remember to continue holding downing the buttons for 15 seconds to force restart surface.
A blue screen error (also called a stop error) can occur if a problem causes your device to shut down or restart unexpectedly. You might see a blue screen with a message that your device ran into a problem and needs to restart.
How to fix Windows 10 USB not working on boot?
- Enable CSM or Legacy boot mode, disable Secure Boot Control and then restart your system.
- Format the drive with NTFS file system if the computer is Legacy BIOS mode.
- Select Bootable Disc Type.
- Select the boot mode for your disc and then click Next.
To create a UEFI USB flash drive, open the installed Windows tool.
- Select the Windows image that you want to copy to the USB flash drive.
- Select USB device to create a UEFI USB flash drive.
- Now select the appropriate USB flash drive and start the copying process by clicking Begin copying.
