How do I move Windows to an external drive without losing data?
Asked by
CuriousCactus42
I'm transitioning from Windows to Linux Mint Cinnamon and I'd like to completely move my Windows installation from my main drive (512 GB M.2 SSD) to an external drive (750 GB USB HDD). My goal is to preserve all the data on the Windows C: drive, as I want to be able to access it later, even if I don't intend to boot from it. I initially set up this dual system to experiment with Linux while keeping a backup of Windows, but now I'm ready to fully commit to Linux. I'd like to know the best methods for moving Windows files over with minimal risk of data loss, as well as how to transfer my Linux Mint installation to the faster SSD for improved performance. If needed, I'm okay with reinstalling Linux Mint, but I want to make sure I don't lose anything important in the process. Any advice would be greatly appreciated!
Answers
If you don't need the Windows drive to be bootable, save yourself the hassle! Just copy your important files from your user folder to the USB. Then, for your Linux Mint install, consider using the 'dd' command to clone it over to the SSD. Just make sure to update your boot loader afterward. However, it might be easier to back up everything from both systems to your USB and do a clean install of Linux Mint.
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Have you tried using Clonezilla? It lets you clone your drives easily. You can create a live USB with Clonezilla and then clone your Windows drive to the external HDD. Once it's done, you should test if you can boot from the external drive just to be safe—you're not losing anything since your original drive stays intact. After that, you can clone your Linux Mint setup to the M.2 SSD using the same method. You might need GParted to resize the partitions on Linux, or you could just opt for a fresh install and restore from a Timeshift backup if you have one.
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Honestly, if I were you, I’d just back up all critical files and go for a clean install of Linux Mint on the SSD. That would be the simplest way to ensure everything is fresh and runs smoothly without the hassle of transferring everything around.
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Another option is to consider moving your Windows data onto a separate D: drive directly in Windows. This way, you keep your data separated from the OS. Then, when you remove Windows from the M.2 SSD, you won't lose any of your files.
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You might want to check out Transwiz. It's designed to help you copy all your Windows data and settings—much safer and more reliable than dragging-and-dropping files manually.
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