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behnam770 Student
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keeping my original os while upgrading my bios to uefi

Pavilion dv6-6090ee
Microsoft Windows 10 (64-bit)

hi,

i have this dv6-6090 for i think 5 years now, after upgrading to windows 10 (my original os was win7) i was thinking of making my drives gpt and upgrading my bios to uefi, i bought an ssd drive i want to replace it with my old hdd, now i want to keep my os and upgrade my bios to uefi, i want to know how, is it possible at all? to keep my original windows 10 witch i dont have any installation media from, and upgrading my bios to uefi and making my drives gpt? by the way, i don't have any problem just migrating my os from old hdd to new ssd drive, my problem is just that bios update to uefi.

tnx

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HP Recommended

keeping my original os while upgrading my bios to uefi

behnam

 

Hello;

Allow me to welcome you to the HP forums!

What I've read is that with UEFI, Win10 will only work with drives that were formatted GPT -- and I don't know that you can reformate an MBR drive to GPT without losing data.  This thread claims you can do that, but I have not verified it:  How to Convert GPT to MBR or Convert MBR to GPT without Losing Data?

 

What I would suggest, BEFORE you attempt this, is that you consider doing an image backup of your drive to external drive using Macrium Reflect. At least this way, if the conversion does not work, you can then go back to MBR and restore the current working version of Win10.

 

What I recommend is the following:
1) Download and install Macrium Reflect (MR)
2) Run MR and backup ALL the partitions to the external drive
3) Use the option to create a boot USB stick or CD

My experience is that MR, when using the High Compression option, typically can compress the saved image file to about 50% of the USED space in the OS partition.  This means if you have an 80GB OS partition, and 40GB is used, MR only needs about 20GB to store the image file.

Good Luck
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