How to use your NAS to back up mobile phones and PCs on Windows 11

Last update: 26/07/2026
Author Isaac

NAS backup

When we talk about protecting our digital lives, many people stick to the basics, like saving a couple of folders on a USB drive. However, if you have a NAS (Network Attached Storage)You have in your hands a powerful tool to ensure that not a single message or photo from your phone gets lost in limbo. It's not just about moving files, but about setting up a system that works on its own while you forget about it.

The problem is that sometimes we get confused by the options. Using an app like Synology Photos to capture beach vacation photos is not the same as wanting a... comprehensive device supportincluding settings, contacts, and call logs. To achieve this, we need to go beyond simple applications and leverage the power of our local network and the Windows 11 operating system.

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Key differences: Backup vs. System image

Before we start configuring anything, we need to clarify two things to avoid making a mistake. On the one hand, we have the conventional backup, which is mainly used for save personal files such as documents or music. The problem is that the operating system and the settings you spent so much time configuring aren't included here.

On the other hand, we find the system image. This is a exact copy of the hard driveThis means it saves absolutely everything: installed programs, Windows itself, and all settings. If your PC crashes or the hard drive fails, you can use an image to restore your system. restore the complete equipment exactly to the state it was in the day you made the backup.

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Steps to configure network backup in Windows 11

To get this started, the first thing to do is go into the Control Panel and look for the section on Security systemOnce there, we'll look for the backup and restore option. Although Windows 11 is modern, this feature is still labeled as if it were from Windows 7, but don't worry, it works perfectly for what we need.

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When you click on settings, you must select the option to Save to a networkHere's where the magic happens: you'll need to enter the path to your NAS folder and your login credentials (username and password) that have write permissions. If you don't do it correctly, Windows will give you a permissions error and prevent you from proceeding.

At this point, you can choose whether you want only the data files or if you prefer include a system imageMy advice is to select both options for maximum security. Finally, schedule the backup frequency. periodically and automaticallypreventing the human factor (forgetfulness) from being the cause of data loss.

The NAS as the heart of home backup

Having a network-attached storage device is the best alternative to local drives. Why? Because if your hard drive is connected to your PC and you get a ransomware attackIt's very likely that the virus will encrypt both the computer and the external hard drive. A properly configured NAS provides a necessary layer of isolation.

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If you're thinking of setting one up, you can buy commercial solutions like Synology or QNAPwhich are super easy to use, or if you like tinkering, you can recycle an old PC with TrueNAS or even a Raspberry Pi. In Windows 11, you can take advantage of Storage Spaces to manage your disks in a versatile way and optimize space.

  • Storage capacity: Calculate how much space you need and leave room for the future.
  • RAID redundancy: Using RAID 1 or RAID 5 is vital so that, if a physical disk fails, you don't lose your information.
  • stable connection: Whenever possible, perform backups via Ethernet cable, as Wi-Fi can be unstable and interrupt the process.

Advanced strategies: Backup of the NAS itself

This is where many people go wrong: they think having a RAID is enough. Wrong. RAID protects against a single disk failure, but not against fire, theft, or massive human error. That's why you need... make a copy of your copyThe most elegant way is to follow the 3-2-1 rule: three copies, two different media, and one outside the home.

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If you hate the cloud, the most viable option is to use a external hard drive You can store it in a different physical location. This is the cheapest option, although it requires discipline and manual updates. Another alternative is to have a second, simpler NAS at a relative's house, automatically syncing the data.

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For those who are comfortable with the cloud, there are some very interesting options. There's no need to pay expensive Dropbox fees; there are services like Backblaze B2 or Wasabi that operate on a pay-per-use model. Some even offer file versioningThis allows you to recover a previous version of a document if ransomware manages to encrypt the NAS.

Having a robust protection system involves combining the immediacy of a local NAS with the security of an external or remote backup. By integrating the Windows 11 system image And with mobile file automation, you ensure that any technical disaster is simply a passing setback and not an irreversible data loss tragedy.

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