Windows boot manager

Hi, I have win 10 pro installed on a Samsung 850 pro SSD. In Bios it lists Windows Boot Manager as the #1 option. I selected Samsung ssd as my #1 option, saved and exited. Computer will not boot. Says No OS found-insert media and restart. Did that a couple times. No Boot. Set Bios back to Windows Boot Manager. Everything runs fine. Also Sata controller set to AHCI. Is this normal for Windows 10? In Device manager my storage controller says Microsoft storage space controller. Is this normal for Win 10? Thanks

Welcome to windowssh blog, Mike.

It certainly sounds normal if you are booting UEFI to a disk with GPT partitioning.

Try executing "msinfo32" from a command prompt and report what it says on the line "BIOS Mode".

If you post a screenshot of your disk management screen we can tell you what is going on with your boot files.

Disk Management - How to Post a Screenshot of - Windows 10 blog

More than likely your SSD is set up for UEFI booting - which will be the Windows Boot Manager entry in bios. When you select the boot from SSD option, bios is looking to legacy boot the SSD which it isn't set up for. This is assuming your boot files are actually contained on the SSD and not on another installed hard drive - which we can tell from disk management.

In says Bios Mode- UEFI , also I did see PCR7 Configuration-Binding Not Possible. Whatever this means, I have no idea. But if Windows Boot Manager is the normal boot up for win 10, I'm good. Everything else seems to work.

I will study the how to post a screen shot and do what I can.

In says Bios Mode- UEFI , also I did see PCR7 Configuration-Binding Not Possible. Whatever this means, I have no idea. But if Windows Boot Manager is the normal boot up for win 10, I'm good. Everything else seems to work.

Yeah, you're good. I'm not a wizard at any particular BIOS (PCR7 sounds vaguely familiar but no help I can give on that) but you are set up in UEFI boot, highly likely to a GPT partitioned disk. If you're new to UEFI, it may take some getting used to (like it did me) as far as booting from alternate devices and the best way to do that.

Here is what I have. Hopefully it works. This is on reinstall of win 10 pro

Yep, you are good to go.

Thanks for your help . I feel a lot more comfortable , that I did it right.

Good to know Mike and you're always welcome here.