Boot drive or partition not recognized after a clean Windows 10 re-install

jbach

jbach

jbach

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I was forced to do a clean re-install of Windows 10 after a failed update.
I did a simple format of ONLY my C drive partition first before my re-install.

I can boot into my desktop successfully but ONLY after I first boot into BIOS and manually select my startup drive in the Boot list.
I then do a save-exit and can launch my desktop as usual.

The next time I restart (without entering BIOS first) my PC just hangs, fans whirring and a black screen.

Any help or feedback appreciated!!
 
Do you have any other drives in the system?

When you did the clean install did you disconnect all drives except the 1 you want the OS on? this would prevent Windows from installing stuff on any of the other drives.

Whats the full system spec? Could try replacing the cmos battery if its not remembering the boat order
 
Sounds like you need to rebuild the BCD. You can do this in CMD if you have a bootable Windows 10 iso.
 
One of the things that you should really do when installing Windows, is to have just the one drive in the system, and if possible, completely wipe ALL the partitons on the Boot Drive.

All my PCs and Laptops have at the very least, an SSD to boot from and have Windows on it, and a second Hard Disk for the data.
 
In the bios
Are you just selecting boot over ride?
May be called different things
Depending on motherboard manufacturer
But it's basically same as pressing F key during boot up
It's a one time boot choice
Your bios should also have the option to make
That drive the default

When nvme drives are involved
It's not easy to remove or disable those
To only have one drive connected during install
Unlike sata drives

Few options
In windows use msconfig
Set current windows as default
Delete others if you know for certain they don't
Need to be in the record

In windows use free software easybcd to examine
What drives are in boot record
Can edit it but need to be careful if remove anything
Would always suggest having an image backup
Before messing with the boot record

Other free software
Dual boot fixer
Very useful if got multiple OS
Has an automatic fix
Or can manually edit too I think

Or use cmd from windows repair
Bootrec / scanos
Bootrec /fixboot
Bootrec/ fixmbr
Bootrec / rebuildbcd
Are the commands
 
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