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To back up Windows 11 to an external hard drive, plug in the drive, open Control Panel > File History, select Select drive, choose the external drive, and select Turn on. File History copies your personal folders to the drive and keeps saving new versions every hour while the drive is connected. For a copy of the entire system, use the older system image tool described below.
What you need: an external drive with more free space than your files. A portable hard drive like the WD 2TB Elements Portable costs less per terabyte. A portable SSD like the Samsung T7 1TB is faster and tougher.
Back Up Your Files With File History
- Connect the external drive.
- Press Windows key + S, type File History, and open it. It opens in Control Panel.
- Select Select drive in the left pane, pick the external drive, and select OK.
- Select Turn on.
- To start a backup right away, select Run now.
File History backs up Libraries, Desktop, Contacts, and Favorites. To change how often it saves or how long it keeps versions, select Advanced settings. Microsoft covers these options in its File History guide. If Norton 360 is also backing up the same folders and you only want one backup, see how to turn off Norton 360 backups once File History has finished its first run.
OneNote has its own backup setting, and you can point it at the same drive with these OneNote backup steps.
Create a Full System Image
A system image copies everything on the drive, including Windows and your apps, so you can restore the whole PC. Microsoft no longer develops this tool, but it’s still included. A system image is different from a restore point, which saves only system files and settings; see how to create a restore point in Windows 11 for that lighter safety net.
- Open Control Panel and select Backup and Restore (Windows 7). It’s under System and Security.
- Select Create a system image in the left pane.
- Choose On a hard disk and pick the external drive.
- Select Next, then Start backup.
The drive needs enough free space for everything on your C: drive.
Still on Windows 10? See how to back up Windows 10 to an external hard drive.
Copy Files to an External Drive and Check Them
Connect the drive directly to the PC, using its power supply if required. Press Windows + E, choose This PC, and open the external drive by its name and drive letter. Make a new destination folder. In a second File Explorer window, select the source files or folders and press Ctrl + C, then open the destination and press Ctrl + V. Wait for copying to finish.
Open several files from the external drive and compare important folders before considering the copy complete. Use Copy for a backup; Cut moves files away from the original location. To move them deliberately, keep a separate verified backup and check the destination before removing originals. Microsoft’s external-storage transfer guide explains copying and checking files.
Close any files on the drive, then click the taskbar’s Safely Remove Hardware and Eject Media icon and choose Eject for that drive. Unplug it once Windows says it’s safe. If it says the drive is in use, close the app using it and try again. See Microsoft’s safe removal instructions. If a drive with files you need doesn’t show up, check its cable, power and a different port; don’t format or initialize it just to make it appear.
What About the Windows Backup App?
The Windows Backup app saves your folders, settings, and app list to OneDrive, not to an external drive. It’s useful for moving to a new PC, but it doesn’t replace a drive backup. See Microsoft’s Windows Backup guide for what it includes. To reinstall Windows itself if the PC won’t start, also make a Windows 11 recovery USB. Moving from an older PC? See how to transfer data from Windows 10 to Windows 11.
Clone a Disk to Another Drive
A clone copies a disk’s partitions straight to another drive, while a backup image is a file you restore later. Cloning overwrites everything on the destination drive. Keep a separate backup, identify both drives by model and capacity, and make sure the destination has room for all the partitions. One current tool is Macrium Reflect X, which you can download from Macrium. Check its license and price first, because Macrium no longer offers the old Reflect Free edition.
To clone a disk in Reflect X:
- Open Create Backups > Local Disks, select the source disk, and choose Clone this disk….
- Select Select a disk to clone to… and pick the destination drive.
- Select Copy Partitions. For a Windows startup disk, include all the system partitions. Resize them if needed, and stop if they won’t fit.
- Skip the schedule for a one-time clone. Review the summary and select Finish.
- Select Run this backup now in Backup Save Options, check the destination one more time, and accept the overwrite warning.
- Wait for Reflect X to report success. Don’t interrupt the clone.
Refresh Local Disks to see the new partitions, then open some files on the destination. Macrium’s clone wizard guide covers each screen, and its Reflect X cloning walkthrough shows them. If the clone replaces your startup disk, follow the PC maker’s instructions to install it, and make sure Windows starts from it before you retire the old disk. A clone connected over USB won’t boot on every PC.
Frequently Asked Questions
How do I restore files from File History?
Open File History and select Restore personal files. Browse to the file, pick a version, and select the green Restore button. For other ways to get files back, see how to find deleted files on Windows 11.
Can I keep using the drive for other files?
Yes. File History uses its own folder on the drive.
How much space do I need?
At least as much as the files you’re backing up, plus extra room for older versions. A drive twice that size is a good target.
To copy just a few files instead of setting up File History, see how to put files on a flash drive in Windows.
Matthew Burleigh is the founder, head writer, and editor of Solve Your Tech, which he launched in 2012. He has written technology tutorials since 2008 and worked in IT since 2003, including small-business support, IT management, and consulting. He holds Bachelor’s and Master’s degrees in Computer Science from Arizona State University.
Matthew writes practical guides for Windows, iPhone and iPad, Microsoft Office, Outlook, Google apps, and Android. Solve Your Tech’s guides are checked step by step against the device or app maker’s own documentation and tested on his own devices whenever he has the hardware or software, with clear steps, sources, and update dates.
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