What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
iTechGuides is reader-supported. When you buy through links on our site, we may earn an affiliate commission. As an Amazon Associate I earn from qualifying purchases. Learn more
An unplugged backup drive is harder for ransomware on a connected computer to reach. That isolation is valuable, but it does not make the drive invulnerable or guarantee that its files can be restored. Keep the backup current, protect it from loss and damage, and test that it works.
Why unplugging a backup drive helps
When an external drive is connected and mounted, software running with your account’s permissions may be able to access it. Disconnect it after the backup, and the computer can no longer directly write to that drive. This creates a recovery copy that many threats on the connected system cannot reach at that moment.
CISA and the FBI advise keeping backups offline. Their 2021 DarkSide advisory says: “Best practice is to store your backups on a separate device that cannot be accessed from a network, such as on an external hard drive.” The recommendation is about reducing access, not making a drive immune to ransomware or hardware failure. Read the CISA and FBI advisory.
PC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11Crashes, No Sound, or Screen Glitches?
Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteAn unplugged drive can still fail, be stolen, damaged by fire or water, or hold an old backup. It is one useful layer in a backup plan, not a complete plan by itself.
#1 Best Overall
- Easily store and access 2TB to content on the go with the Seagate Portable Drive, a USB external hard drive
- Designed to work with Windows or Mac computers, this external hard drive makes backup a snap just drag and drop
- To get set up, connect the portable hard drive to a computer for automatic recognition no software required
- This USB drive provides plug and play simplicity with the included 18 inch USB 3.0 cable
- The available storage capacity may vary.
How an offline drive compares with other copies
| Backup approach | What it helps with | Main limitation |
|---|---|---|
| Unplugged external drive | Reduces direct access from an infected, connected computer while the drive is disconnected. | It can be lost, damaged, fail, or become outdated; access is less convenient. |
| Always-connected local or network storage | Provides convenient access to a copy. | If it is reachable from an infected computer or network, malware may be able to affect it too. |
| Cloud-synced folder | Keeps files available across devices and may synchronize changes. | Encryption of local files may sync and potentially overwrite unaffected cloud files; behavior and recovery options vary by service. |
A synced folder is not automatically an independent historical backup. Check your service’s retention and version-history settings instead of assuming it keeps an unaffected copy. CISA’s StopRansomware Guide discusses the risk that encrypted local files may synchronize to cloud storage. Read the StopRansomware Guide.
Build more than one recovery path
HHS OCR describes CISA’s 3-2-1 approach: keep three copies of important data (the primary copy and two backups), use two different media types, and keep at least one copy offsite. The idea reduces dependence on a single drive or location. The HHS material addresses healthcare cybersecurity; HIPAA requirements apply to covered entities and business associates, while the copy, media, and offsite principle is useful more broadly. See HHS OCR’s cybersecurity practices.
For a personal setup, an offline external drive can be one backup copy. A separate offsite copy can help if a local disaster affects both your computer and the drive. Using more than one kind of storage can also reduce reliance on a single device type.
Rank #2
- Easily store and access 1TB to content on the go with the Seagate Portable Drive, a USB external hard drive.Specific uses: Personal
- Designed to work with Windows or Mac computers, this external hard drive makes backup a snap just drag and drop. Reformatting may be required for Mac
- To get set up, connect the portable hard drive to a computer for automatic recognition no software required
- This USB drive provides plug and play simplicity with the included 18 inch USB 3.0 cable
- The available storage capacity may vary.
Choose a drive you can actually use
There is no single best external drive for everyone. Choose one with enough capacity for the data you intend to protect, a connector your computer supports, and a form factor you can store safely. If you encrypt the backup, make sure the backup method and drive support your chosen encryption approach, and retain the recovery key somewhere separate and secure.
Encryption and disconnection solve different problems: encryption protects data stored on the drive if someone obtains it, while disconnection limits access from the connected computer. Government ransomware guidance recommends offline, encrypted backups. CISA’s guidance covers offline and encrypted backups.
Make the backup routine reliable
- Decide what to protect. Include important documents, photos, project files, and other data you could not easily recreate. Confirm that your backup method includes the files and locations you care about.
- Connect the drive and run the backup. Use your operating system’s or backup software’s normal process, and wait for it to report completion.
- Check readability. Open a few backed-up files, or use the backup software’s verification feature if available. A completed job is not proof that every file will restore correctly.
- Eject and disconnect safely. Use the operating system’s eject or safely-remove control before unplugging the drive.
- Store it somewhere protected. Keep it away from routine hazards, and consider an offsite copy for protection against a local disaster.
Back up more often when the data changes frequently or losing recent work would matter more. That is a risk-based choice, not a universal schedule prescribed for home users by the cited guidance. The longer the gap since the last backup, the more recent work could be missing from a restored copy.
Rank #3
- High capacity in a small enclosure – The small, lightweight design offers up to 6TB* capacity, making WD Elements portable hard drives the ideal companion for consumers on the go.
- Plug-and-play expandability
- Vast capacities up to 6TB[1] to store your photos, videos, music, important documents and more
- SuperSpeed USB 3.2 Gen 1 (5Gbps)
Test that you can restore
A backup only proves its value when you can recover the data. CISA and the FBI recommend regularly testing backup procedures; HHS OCR recommends periodic test restorations and integrity verification. Neither source specifies one schedule for every household. CISA and FBI backup recommendations and HHS OCR guidance explain the importance of testing.
- Restore a sample file to a separate location and open it.
- Occasionally practice restoring a larger set of files or a system, if your backup method supports it.
- Confirm you have the needed passwords, encryption keys, backup software, and a working destination drive.
These checks can reveal a corrupt backup, a forgotten password, or a recovery process you would otherwise have to learn during an emergency. NIST publications also emphasize recovery testing in operational-technology and managed-service-provider contexts; they reinforce the value of testing but are not consumer product recommendations. NIST SP 800-82 Rev. 3 and NIST SP 800-161 Rev. 1 Update 1.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
