Quick Summary
Windows 11 rolls out a major feature update in the second half of every year, and 25H2 is the latest release in that annual cycle. You can check for it under Windows Update in the Settings app, but before installing, it’s important to back up your data and free up storage space. This guide walks through everything from checking for the update to installing it and troubleshooting common errors.
What Exactly Is Windows 11 25H2?
Windows 11 names its versions using a year + half-year format. For example, 23H2 refers to the feature update released in the second half of 2023, and 24H2 to the one released in the second half of 2024. Following that same pattern, 25H2 is the annual feature update rolling out in the second half of 2025.
Unlike routine security patches, these annual updates typically bring bigger changes, including:
- New system features and UI improvements
- Strengthened security and privacy policies
- Adjustments to compatibility with existing apps
- Removal or modification of certain legacy features
Because of this, it’s worth reviewing what’s changed before updating — and if you’re using a work PC, taking extra time to evaluate the update before applying it is the safer approach.
What Should You Check Before Updating?
Since a major feature update affects your entire system, a bit of preparation goes a long way.
- Back up important data: Save documents, photos, and other files to an external drive or the cloud beforehand.
- Free up storage space: Feature updates generally install more smoothly when you have plenty of free space available.
- Keep your device plugged in: If you’re using a laptop, connect it to a power adapter rather than relying on battery power during the update.
- Close essential programs: If you’re running antivirus or security software that might conflict with the update, consider closing it temporarily.
- Double-check hardware requirements: Confirm that your PC still meets Windows 11’s baseline requirements, such as TPM 2.0 and Secure Boot.
How Do You Install the Windows 11 25H2 Update?
The most straightforward method is through the Windows Update feature.
- Press Windows key + I to open the Settings app.
- Select Windows Update from the menu on the left.
- Click Check for updates.
- Once the 25H2 feature update appears, select Download and install.
- After the download finishes, click Restart now to complete the installation.
If the update doesn’t show up right away, Microsoft is likely still rolling it out in phases. In that case, you can check back again in a few days, or try enrolling in the Windows Insider Program to get early access. Keep in mind, though, that pre-release versions tend to be less stable, so they’re not recommended for work computers.
What Should You Do If the Update Fails or Throws an Error?
If you run into errors during the feature update, try the following steps in order:
- Restart and try again: The issue might just be a temporary network hiccup, so restart your PC and check for updates once more.
- Recheck your storage space: Clear out unnecessary files to free up more room.
- Run the Windows Update troubleshooter: You’ll find it under Settings > System > Troubleshoot > Other troubleshooters.
- Reset your network adapter: Running network reset commands through Command Prompt can sometimes resolve connectivity-related update issues.
- Check your drivers and antivirus software: Outdated drivers or certain security software can interfere with the update process.
If none of these steps resolve the problem, it’s worth using the diagnostic tools on Microsoft’s official support page or contacting support to have your logs analyzed.
What Should You Check After Updating?
Once the installation is complete, it’s a good idea to run through these checks:
- Confirm the version: Go to Settings > System > About and verify that your PC now shows version 25H2.
- Test your key apps: Make sure the programs you use most often are still running smoothly.
- Update your drivers: Graphics, audio, and other drivers sometimes need a separate update after a major feature update.
- Restore your backed-up files: If needed, bring back any data you backed up beforehand.
Since some settings can reset or notification permissions may change right after an update, it’s also a good habit to double-check your privacy and security settings afterward.
Frequently Asked Questions (FAQ)
When will I be able to get the Windows 11 25H2 update?
Microsoft typically rolls out feature updates in stages rather than to everyone at once. You can check whether it’s available for your PC by opening Settings, going to Windows Update, and clicking the check button.
Is it okay to turn off my PC during the update?
Powering off your PC in the middle of an update can lead to corrupted system files or boot errors. It’s best to keep your device on until installation finishes and you see a prompt like “Restart now.”
Can I roll back to the previous version after updating?
Windows sometimes offers a way to revert to your previous version for a limited time, found under Settings > System > Recovery. Since this option is only available for a short window, it’s best to act quickly if you decide you need to roll back.
Will the update fail if I don’t have enough storage space?
Feature updates require a substantial amount of free space to create temporary files during installation. If you’re low on storage, the installation may stall or fail, so it’s best to clear out unnecessary files before starting.
Should I update my work PC right away?
Work computers can run into compatibility issues with essential business software, so it’s generally safer to wait until the update has stabilized — or to follow your company’s IT department’s guidance — rather than installing it the moment it becomes available.