Reboot and select proper boot device message after partition change

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justin1978

PCHF Member
Oct 18, 2022
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Hi everybody,

Im in serious trouble with my daughter as ive messed her her beloved gaming PC.

Yesterday she was moaning about keeping her school work seperate from her games so on her 1TB HDD i made a partition for her to store her work. After she turned the computer off and on again a massage came up saying

"An operating system wasnt found. Try disconnecting any drives that dont contain an operating system"

I paniced, she had a go at me and it was WW3 for a moment. I went into the BIOS to see if the HDD was still listed and it was and to see if it was in the correct boot seqence and it was. This is where i think ive messed up, i changed a few setting on the boot up setting- it was something like legacy and another open.

After a bit of googling i read something about the partition i created was being used to boot windows 10 and because it only contained school work it wouldnt boot. So i went in the she and dug out an old Windows 7 PC and took the HDD from my daughters PC and hooked it up. I went into disc management and formatted the partition and then extened the volume on the main C drive to take up the deleted partition storage space.

This evening i put the HDD back into the gaming PC and booted it up only to be greeted with-

"Reboot and select proper boot device"

I went back into the BIOS and its saying the HDD is there and its 1st boot priority but its not evening spinning. I changed a few more settings but not sure what and how i did it. I also tried the setting that allows you to load up from a previuosly working BIOS set up but that didnt work either.

I dont know much at all bout computer and their spec and all i know is that its runnig windows 10 and has a gigabyte ga-b85-hd3 motherboad. Its not a up to date modern gaming PC by any means but she loves it and if ive lost all her games and work i might as well leave the country.

Can anybody push me in the right direction on how to fix this?

Ive just remembered that the HDD had 3 partiitions- OS, Main C drive and an empty unallocated partition which i what i activated

Many thanks
 
Hi there

What type of motherboard does she have?

What is the HDD access mode? (AHCI, RAID, RST...)?

Can you run diskpart and post a screenshot here?
 
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