Transferring windows and files to SSD

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Hi,

Does anyone. Know how to transfer files from a mechanical hard drive to an SSD?
I prefer to transfer than to do a fresh install and lose all the data on the hard drive

 

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https://www.macrium.com/reflectfree

iv just cloned my old SSD to a new SSD (M2 dirve) and i'm getting an error saying
Reboot and select proper boot device any ideas why im getting this?