Restoring files means copying them back from where you stored them

A backup is only useful if you can get your files back when you need them. Restoring means taking the files you backed up and putting them back on your device — either because your original files were lost, deleted, or corrupted, or because you need an older version of something. The process depends on where you backed them up: a cloud service like Google Drive works differently than an external hard drive, which works differently than a recovery partition on your computer.

The good news is that most backups are designed to be straightforward to restore. You do not need special software or technical knowledge. You do need to know where your backup actually is, and whether you are restoring everything at once or just a few files.

Key Takeaways

  • Cloud backups like Google Drive, OneDrive, and iCloud let you restore individual files by logging in and downloading them, which takes minutes.
  • External hard drive backups require you to plug in the drive and copy files back to your computer, or use the backup software's restore feature if one came with the drive.
  • Windows System Image backups and Mac Time Machine backups can restore your entire computer to a previous state, but this erases everything on your device first.
  • Before restoring, make sure you have the backup device or login credentials, and know whether you want to restore one file or everything.
  • If you cannot find your backup, check the location where you originally set it up — cloud service login, external drive, or backup software on your computer.

Restoring from cloud storage like Google Drive, OneDrive, or iCloud

Cloud backups are the easiest to restore because you access them through a website or app you already use. Log into your account on any device with internet, find the file you need, and read it back to your computer or phone.

For Google Drive: Go to drive.google.com, sign in with your Google account, find the file or folder you need, right-click it, and select "read". The file will appear in your Downloads folder. If you deleted the file and it is still in your Trash, open Trash, right-click the file, and select "Restore".

For OneDrive: Go to onedrive.live.com, sign in with your Microsoft account, navigate to the file, click the three dots next to it, and select "read". On a Windows computer, you can also open the OneDrive app, find the file, and click the cloud icon next to it to read it to your device.

For iCloud on an iPhone or iPad: Open the Files app, tap iCloud Drive, find your file, tap and hold it, and select "Copy". Then open the app where you want it (Notes, Mail, etc.) and paste it. On a Mac, open Finder, click iCloud Drive in the sidebar, and drag files to your desktop or a folder.

Restoring from an external hard drive or USB drive

If you backed up to a physical drive, plug it into your computer. You will see it appear as a new drive in File Explorer (Windows) or Finder (Mac). Open it and look for the folder where you saved your backup.

If you used backup software that came with the drive (like Seagate's Toolkit or WD SmartWare), plug in the drive and open the software. Look for a button or menu option that says "Restore" or "Recover". The software will show you what files are on the backup and let you choose which ones to restore and where to put them on your computer.

If you manually copied files to the drive, straightforward open the drive in File Explorer or Finder, find the files you need, and copy them back to your computer. Drag them to your Desktop, Documents folder, or wherever you want them. This is the slowest method if you are restoring a large amount of data, because copying happens at the speed of the USB connection — usually a few minutes per gigabyte.

Do not unplug the drive while files are copying. Wait until the copy progress bar reaches 100 percent, then safely eject the drive before removing it.

Restoring your entire computer from a system image

A system image is a complete snapshot of your entire computer — every file, every setting, every installed program — saved to one large file. Restoring from a system image puts your computer back exactly as it was on the day you made the backup. This erases everything currently on your computer, so only do this if you are certain you want to go back to that point in time.

On Windows: You need a recovery drive (a USB drive you created when you set up the backup) or access to the backup file itself. Restart your computer and press F11 or F12 during startup to enter recovery mode (the key varies by manufacturer — look it up for your specific computer model). Select "Troubleshoot", then "Reset this PC" or "System Image Recovery". Follow the prompts to choose your backup file and confirm the restore. This takes 30 minutes to an hour depending on how much data is on your computer.

On Mac with Time Machine: Restart your Mac and hold Command + R to enter Recovery Mode. Select "Restore from Time Machine Backup". Choose your backup drive, select the backup date you want to restore from, and confirm. Your Mac will restart and restore to that point. This also takes 30 minutes to an hour.

System image restores are useful if your computer will not start, if it has been infected with malware, or if you want to completely undo recent changes. They are not useful if you only need one or two files back — use the file-by-file methods above instead.

Restoring deleted files from your computer's recycle bin or trash

Before you look for a backup, check whether the file is still on your computer. On Windows, open File Explorer and look for the Recycle Bin icon on your desktop, or click "Recycle Bin" in the left sidebar of File Explorer. Look for your file, right-click it, and select "Restore". The file goes back to the folder it was deleted from.

On Mac, click the Trash icon in the Dock (it looks like a garbage can). Find your file, right-click it, and select "Put Back". The file returns to where it was before you deleted it.

Files in Recycle Bin or Trash stay there for a while — usually 30 days on Windows, until you empty the trash on Mac — so this is often faster than restoring from a backup. Once you empty the bin or trash, those files are much harder to recover and you will need to use a backup or data recovery software.

What to do if you cannot find your backup

If you set up a backup but cannot find it now, start by checking where you originally saved it. Look at your cloud service login (Google Drive, OneDrive, iCloud), check whether an external drive is still plugged in or stored somewhere, or search your computer for backup software you might have installed.

On Windows, open Settings, go to "System" > "About", and scroll down to "Related settings". Click "Backup settings" or "System" to see if File History or System Image backups are turned on and where they are being saved. On Mac, open System Settings, click "General", then "Time Machine" to see if backups are running and where they are stored.

If you cannot find a backup at all, you may not have set one up yet, or it may have been deleted or lost. This is why setting up a backup now — before you need it — matters. If files are already gone and you have no backup, data recovery software like Recuva (Windows) or DiskWarrior (Mac) can sometimes recover them, but this is not may provide and costs money.

Restoring files to a different device or location

You do not have to restore files to the same place they were originally. When you read a file from cloud storage, you choose where it goes. When you copy files from an external drive, you can paste them anywhere on your computer. When you restore from a system image, the entire computer goes back to that state, so location is not a choice.

This flexibility is useful if your original hard drive failed and you are restoring to a new computer, or if you want to keep both the old and new versions of a file. Just make sure you have enough space on your device for the files you are restoring. A full hard drive will not let you restore anything.

Frequently Asked Questions

How long does it take to restore files?

Restoring a single file from cloud storage takes seconds to a few minutes. Restoring from an external drive depends on file size — usually a few minutes for documents, longer for videos or large folders. Restoring an entire computer from a system image takes 30 minutes to an hour. The speed also depends on your internet connection (for cloud) or USB speed (for external drives).

Can I restore just one file, or do I have to restore everything?

Cloud backups and external drives let you restore individual files. System image backups restore everything at once. If you only need one file back, use cloud storage or an external drive instead of a system image.

What if my backup is on an old external drive I have not used in years?

Plug it in and see if it still works. External drives can last 10 years or more if they have not been damaged. If the drive does not appear when you plug it in, try a different USB port or cable. If it still does not show up, the drive may have failed — a data recovery service can sometimes retrieve files, but it is expensive.

Do I lose my current files when I restore from a backup?

Restoring individual files does not affect anything else on your computer. Restoring a system image erases everything on your computer and replaces it with the backup, so you lose any files created after the backup date. Always make sure you want to go back to that point before starting a system image restore.

Can I restore files from a backup made on a different type of computer?

Cloud backups work across any device — restore files from Google Drive on a Mac, Windows computer, or phone. External drive backups depend on the file format — if you backed up individual files, you can usually access them on any computer. System image backups are specific to the operating system and cannot be restored to a different type of computer.