I'm moving from a Windows 10 computer to a new Windows 11 system and want to transfer my secondary SSD. I've already backed up the files to an external drive, but I'm wondering whether I can install the SSD directly in the new PC or if I need to erase and reformat it first. The drive mainly contains games and PDF files, with no important system software that I know of.
4 Answers
Treat it much like connecting an existing external drive, except it’s installed internally. You normally don’t need to initialize or format a drive that already has a valid partition and data on it. After installing it, check Disk Management and run a Windows Defender scan before opening programs from the drive.
The main issue may just be physically mounting the SSD. New motherboards usually include the small SSD mounting screws, so check the motherboard box or accessory bags before improvising with tape or other screws.
The files should be fine, although some installed programs may need to be reinstalled if they depend on registry entries from the old Windows installation. Games and PDFs generally won’t be a problem. If Windows assigns a different drive letter, you can change it in Disk Management, which may help launchers find existing game libraries.
You should be able to move it over without formatting. Since it was only being used as a secondary drive, it shouldn’t contain the Windows boot files, so the new computer should recognize it as another storage drive. Just make sure you connect it while the PC is powered off.

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