Cloning OS from SSD with UEFI to bigger SSD

didokon

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Dec 28, 2014
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Hello,
I have tried looking for an answer to my question online but no one seems to have asked it yet.
So, I'm pretty new to this UEFI thing, and by following a tutorial today I managed to change my Win10 installation from Legacy BIOS to UEFI by changing the SSD my OS runs on (currently) in a GPT "Format" (is that the right word? :S), without the loss of data through a weird method. That said, I'm also about to buy a new SSD, the Samsung 850 EVO 500GB model, and I want to clone everything that is on my current 128gb SSD (mainly the OS itself, that's my #1 priority) to this new SSD.
My situation is now the following:
I'm using UEFI with a GTP partitioned SSD; tomorrow I buy the new SSD and I put it in the PC. I erase everything from the new SSD (if there's some partition on it) and make it a GTP as my current one; then, I use a software like EaseUs to clone my current SSD content (again, mainly OS) to the new Samsung EVO which is now GTP. I shut down the PC, unplug the old ssd and keep only the new Samsung EVO. Done.
What I don't get is: Would this method actually work and allow me to successfully transfer everything to the new SSD and let the PC function perfectly? Will the fact that I was using UEFI with my previous SSD screw up the copied OS on the Samsung EVO and not let me boot, forcing me to reinstall Windows on the new SSD from scratch and making me lose all my data?
I don't really know how the UEFI thing affects a new drive even though I think if it's also GTP therre SHOULDN'T be an issue, or am I wrong??
Help :D
Thanks.
 
Solution
If the current system is working with GPT and UEFI, then cloning will be fine. The new SSD will be formatted with GPT as well.

All you need to do is keep the current SSD installed, add in the new SSD. boot to windows like normal and install EasyUS Todo Backup Free. This software has a great cloning utility that supports SSDs. Make sure to check the box "ssd" (sets the partition offset correctly on the new drive).

If something goes wrong, the old SSD will still have its data, allowing you to boot into it and try again.

firefoxx04

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Jan 23, 2009
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If the current system is working with GPT and UEFI, then cloning will be fine. The new SSD will be formatted with GPT as well.

All you need to do is keep the current SSD installed, add in the new SSD. boot to windows like normal and install EasyUS Todo Backup Free. This software has a great cloning utility that supports SSDs. Make sure to check the box "ssd" (sets the partition offset correctly on the new drive).

If something goes wrong, the old SSD will still have its data, allowing you to boot into it and try again.
 
Solution

didokon

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Dec 28, 2014
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4,510


Ok, so:
1) The software will automatically convert the new SSD in a GPT format?
2) What do you mean with "sets the partition offset correctly on the new drive". I don't want the new drive to have a 128gb partition and then another free 372gb, I want it to be just as the one I have but with more space without nothing changing. Or that's not what you meant?
Thanks