[SOLVED] Windows 10 pro Only boots from Windows Boot Manager

[Blizzerdz]

I build a new PC and I put an SSD in it and it only boots from windows boot manager is that normal? I tried remove it from the boot options & only left my SSD but wouldn't boot

 

[cin19]

I build a new PC and I put an SSD in it and it only boots from windows boot manager is that normal?

No.

I tried remove it from the boot options & only left my SSD but wouldn't boot

The PC will not boot into the window because you did not have the OS.

Tell us what you did, and how did you install the OS? so we may help you find out the problem.

 

[Blizzerdz]

No.
The PC will not boot into the window because you did not have the OS.

Tell us what you did, and how did you install the OS? so we may help you find out the problem.

I installed it from an usb downloaded the windows 10 installation tool

 

[onyxsolo]

Not sure if I understand your question. But does it show multiple installations of windows 10 at the boot manager screen?

 

[Blizzerdz]

Not sure if I understand your question. But does it show multiple installations of windows 10 at the boot manager screen?

when I go into the bios there's options to boot so the first one is windows boot manager & the 2nd one is the actual SSD if I remove the windows boot manager & just leave the SSD it just doesnt boot into windows

 

[d239919]

1. Is the SSD the only drive you have plugged in? If so, do not bother to read further, otherwise, if you had an additional drive plugged in during installation, it could have interfered and caused the boot partition to be stored on the wrong drive. This is the reason why people recommend to only plug in the drive on which you want to install OS.

2. In UEFI settings is an option called Compatibility Support Mode (sometimes called Legacy BIOS Mode) which can help improve compatibility with older operating systems that were not designed with UEFI in mind. For Windows 10 this feature is not necessary, but before you make any changes, make sure your drive is using GUID Partition Table (GPT) which you can check in the Disk Management tool in Windows. Right click on the appropriate drive and click on properties. It should open up a new window where you need to go to the Volumes tab.

3. Make sure your SATA mode is set to AHCI.

View: https://www.youtube.com/watch?v=B0g54VZAwmk

 

[Colif]

when I go into the bios there's options to boot so the first one is windows boot manager & the 2nd one is the actual SSD if I remove the windows boot manager & just leave the SSD it just doesnt boot into windows

Yes, this is normal

UEFI boot method uses the Windows Boot Manager to contain the information needed for the PC to find the correct drive to boot off.

Unlike legacy boot method, the partition on the ssd that includes the boot info can be anywhere on the drive, not limited to being the 1st partition. Legacy boot requires it to be first part as that is only place it looks.

The EFI partition that UEFI boot method looks for can be anywhere, so that is why it uses WIndows Boot Manager to find it.

There are two types of boot method - Legacy & UEFI

Legacy was the boot method used by almost all versions of Windows until Win 8
Legacy bios don't know what a mouse does
It only supports MBR (Master Boot Record) partition style - It has its limitations:

• MBR boot partitions have to be 1st partition on drive - if it gets corrupted you cannot boot PC.
• It only allows 4 partitions (with work arounds)
• Its max partition/drive size is 2.2tb

UEFI was created by a group of hardware and software makers in 2009 to modernise the bios. UEFI stands for Unified Extensible Firmware Interface - UEFI can support modern UI and knows what mouse is for

UEFI supports GPT (GUID (Global Unique ID - every GPT drive on earth has its own ID) Partition Table) and MBR.

GPT was created to fix the limitations of MBR:

• GPT boot partitions can be anywhere, on any drive. Can even be on a network drive. This is why they use Windows Boot Manager. GPT creates backups of the boot partition so recreate it if needed. (in theory)
• GPT drives can have up to 256 partitions
• GPT drives max size is 18.8 million tb

Almost every motherboard made in last 10 years has a UEFI BIOS and supports both. IF WIn 10 sees a motherboard that supports GPT, it will use it. That is what happened here.

Not all UEFI motherboards use the Windows Boot Manager, I know mine doesn't. But on the boards that have it, its there for this reason.