I have an old 512GB M.2 SSD with Windows 11 and my files, plus a new 1TB NVMe M.2 SSD. Both drives are installed in the motherboard, so I would prefer not to buy or use a third drive. What is the simplest way to transfer Windows, applications, settings, and personal data to the new drive? I'm considering cloning, but I'm unsure whether cloning includes the operating system and whether the partition needs to be expanded before or after the process. Would it be better to move Windows to the 1TB drive, or keep Windows on the 512GB drive and use the larger one for games and other large files?
2 Answers
Since the new drive is larger, moving Windows to it is usually the most convenient option. You’ll get more room for programs and games, and you can reuse the 512GB SSD for secondary files after the migration. Keep backups of anything important first, and verify that the new drive is using GPT and that the system is booting in UEFI mode. Also, don’t format or erase the old SSD until you have tested the new installation and confirmed your files are present.
There’s no major benefit to keeping Windows on the smaller drive if the 1TB drive is at least as fast. Putting Windows and frequently used programs on the larger SSD is simpler, while the old drive can later hold less frequently used files or backups.
You can clone the entire 512GB drive directly to the 1TB drive while both are installed. Tools such as Macrium Reflect or the manufacturer’s migration utility can copy the Windows partitions, boot files, applications, and personal data, so yes, cloning does transfer the operating system. Make sure the destination drive is selected carefully because cloning normally erases it. After cloning, shut down, disconnect the old drive temporarily, and boot from the new one. Once everything works, you can reconnect and wipe the old drive for extra storage. If the cloned partition remains the original size, expand it into the unused space afterward using Disk Management or the cloning program.
I already initialized the new drive and assigned it a drive letter. Should I expand the partition before cloning or wait until afterward?
Don’t worry about expanding it beforehand. The cloning software can usually copy the partitions and resize the main Windows partition to use the extra space during the clone. If it doesn’t, expand the partition after confirming the new drive boots successfully.
The new drive is 1TB and the old one is 512GB. I was also wondering whether there’s any real advantage to keeping Windows on the smaller drive and using the larger one for big files.