Backing up your Windows PC to a NAS gives you a safety net that lives on your own network, away from the drive that might fail inside your computer. This guide walks you through setting up NAS backup from your Windows PC, from connecting the two devices to scheduling automatic jobs so you never have to remember to do it manually.
Table of Contents
What you’ll need
- A NAS device already set up and connected to your home network
- A Windows PC on the same network as the NAS
- Administrator access on both the PC and the NAS
- A shared folder or backup destination already created on the NAS
- Enough free storage space on the NAS to hold your backup data
If you haven’t configured your NAS yet, it’s worth working through setting up a NAS at home first, or the full Synology NAS installation guide if you’re using that brand specifically.
Step 1: Connect your PC to the NAS
- Open File Explorer on your Windows PC and check that the NAS appears under Network. If it doesn’t show up, confirm both devices are on the same network and that network discovery is enabled.
- Map the NAS shared folder as a network drive so it’s easy to find and consistent every time you back up. This step is covered in detail if you need to map your NAS as a network drive.
- Test the connection by copying a small file to the mapped drive and confirming it appears in the NAS shared folder.
Step 2: Choose a backup method
There are two broad approaches to setting up NAS backup from Windows: using the built-in Windows backup tools pointed at the mapped network drive, or using dedicated backup software provided by your NAS manufacturer. Most NAS brands, including Synology and QNAP, offer their own backup applications that install on the NAS and pull data from client PCs, which generally gives you more control over versioning and scheduling than Windows’ native tools.
| Method | Best for | Notes |
|---|---|---|
| Windows File History / Backup | Simple document and folder backups | Built into Windows, points to a mapped network drive |
| NAS vendor backup app (e.g. Active Backup for Business, Hybrid Backup Sync) | Full PC image or continuous protection | Runs from the NAS, manages versioning and retention |
| Manual copy or sync tool | One-off or occasional backups | No automatic scheduling unless paired with Task Scheduler |
Step 3: Set up backup using Windows tools
- Open the Windows backup settings and select the option to back up using a file history or backup feature.
- Choose your mapped NAS drive as the backup destination when prompted.
- Select which folders to include, such as Documents, Pictures, and Desktop, or add custom folders manually.
- Turn on automatic backup and set a frequency, such as hourly or daily, depending on how often your files change.
- Run a first backup manually to confirm the connection works and check the NAS shared folder to verify files have arrived.
Step 4: Set up backup using NAS vendor software
- Log in to your NAS web interface and install the manufacturer’s backup application from its app store or package centre.
- Download and install the matching client agent on your Windows PC if one is required.
- Open the backup app on the NAS and create a new backup task, selecting your PC as the source.
- Choose whether to back up specific folders, an entire drive, or a full system image.
- Set a retention policy so older backup versions are kept for a defined period rather than being deleted immediately.
- Schedule the task to run automatically at a time when your PC is usually on and connected to the network.
Tips and troubleshooting
- If backups fail silently, check that the NAS shared folder has enough free space and that your PC hasn’t gone to sleep before the scheduled job runs.
- Keep your NAS firmware and any backup client software updated, since older versions can lose compatibility with current Windows releases.
- Test restoring a file occasionally rather than assuming the backup works, since a backup you’ve never restored from is not a verified backup.
- If the mapped drive disconnects after a restart, set it to reconnect at sign-in within File Explorer’s mapping options.
- For laptops that aren’t always on the home network, consider a backup schedule that runs only when the NAS is reachable, or trigger backups manually before travelling.
Frequently asked questions
Can I back up my entire Windows PC to a NAS, not just files?
Yes. Many NAS backup applications support full system image backups, which capture your operating system, installed programs, and settings alongside your files. This is generally handled through the vendor’s dedicated backup software rather than Windows’ basic file backup tools.
How often should I schedule NAS backups from my PC?
Daily backups suit most home users, though anyone working with frequently changing files might prefer hourly jobs. Balance frequency against network load and NAS storage capacity, since more frequent backups with long retention periods consume space faster.
Do I need a static IP for reliable NAS backup?
It helps but isn’t strictly required. Reserving an IP address for your NAS through your router’s DHCP settings reduces the chance of a mapped drive breaking because the NAS’s address changed.
What happens if my NAS runs out of storage during a backup?
The backup job typically fails or stops partway through. Set a retention policy that automatically removes the oldest backup versions, and monitor available space regularly so you can add storage or free up capacity before it becomes a problem.
