What to do
Check your Internet connection
Check that your Internet connection works, for example by opening a website. If it is slow or unstable, try again on a more stable connection.
Restart the check
Open Settings → Updates, then click “Check for updates”. Then click “Download update”. FuzeVPN also checks for an update at startup and then shows “A new version is available.”
Request rejected by the server
If the download server rejected the request, restart the update download. If the rejection happens again, write to support at contact@fuzevpn.com.
Check still failing
Your Internet connection works, but the check still fails? If another Windows session on this PC is using the VPN, disconnect it from that session and quit FuzeVPN there. If the local VPN service is not responding, follow the article on installing and starting FuzeVPN on Windows.
FuzeVPN won’t install, won’t start or doesn’t get Windows permission
Disconnect the VPN
Disconnect the VPN and wait until the disconnection is confirmed, then restart the update. If the disconnection does not go through, follow the article on being unable to disconnect.
Quit FuzeVPN
When FuzeVPN asks you to close it, choose “Quit FuzeVPN”. This option is in the menu of the icon near the clock, in “My account” and in the “Sign in” window. The cross only minimizes FuzeVPN near the clock.
Disk space and files
Free up disk space and close the programs still using FuzeVPN’s files. Then try again. With the portable version, also check that your Windows account can write to its folder.
Restart the installation
Close the programs that could block the installation. Then click “Install now” and accept the Windows permission prompt. “Later” installs nothing.
Update Windows
A FuzeVPN update may require a newer version of Windows. Install the Windows updates, then try again.
Installation type not recognized
If FuzeVPN does not recognize its installation type, quit it with “Quit FuzeVPN”, then reopen it. Then restart the update.
Install manually
Download the latest version from the Download page, then install it: your preferences are kept. Do this when the message asks you to, or when the built-in update is not offered or fails. Take the official signed installer (EXE recommended), x64 or ARM64 depending on your PC, or the new portable version if you use it.
Microsoft Store version
Did you install FuzeVPN from the Microsoft Store? This version updates through the Store.
Manual installation requested
Depending on their type, some updates are installed manually. If FuzeVPN asks you to, install this one from the FuzeVPN for Windows page, x64 or ARM64 depending on your PC.
Invalid signature
You installed FuzeVPN from the FuzeVPN for Windows page, but its signature is invalid? Check that the Windows date and time are correct. If the message comes back, write to support and send, if possible, the FuzeVPN diagnostic report.
Move the portable version
If FuzeVPN asks you to move the portable version, disconnect the VPN and quit FuzeVPN. Move its whole folder to an NTFS or ReFS drive where your Windows account can write: the Desktop, for example. Then try the update again.
Portable version, manually
Disconnect the VPN and quit FuzeVPN. Download the new portable version, x64 or ARM64, from the FuzeVPN for Windows page. Extract this whole ZIP file, then replace the old folder with the new one, as the message says.
Portable update not applied
Find your previous version in its original folder, or in the “.FuzeVPN-backup-…” recovery backup, next to the portable folder. Check the permissions on its folder and close the programs using its files. Then redo the update with the full new portable version from the FuzeVPN for Windows page.
Write to support
If the failure happens again, write to support at contact@fuzevpn.com. Include the exact message, the time and the Windows code if it is shown. Also send, if possible, the FuzeVPN diagnostic report.
Why it happens
- FuzeVPN cannot reach its update service, or this service did not respond in time. The Internet is not working, the connection is slow, or this service cannot be reached from your network.
- The check can also fail for reasons unrelated to the network, and the message does not say why. FuzeVPN’s local VPN service may not be responding, or another Windows session is using the VPN. Windows may also have refused a permission, or the installation needs to be repaired.
- The update download was cut off or took too long. The connection was interrupted, it is slow or unstable, or the network filters this download.
- The server providing the update file rejected the request: the problem comes from this server, not from your PC.
- Windows could not prepare or save the update. There is not enough disk space, permissions on a folder are missing, or a program is still using files.
- Preparing the update failed without further detail. The VPN may still have been connected, or the installed version is too old to update from the app.
- Before installing, the update must stop the VPN and lift the protection if the connection drops (kill switch). A VPN operation still in progress blocks the installation: for example a connection, a reconnection or a server change. FuzeVPN may also not have registered the disconnection, or may not be able to confirm this shutdown.
- To continue or finish, the update needs FuzeVPN to be quit. The window’s cross only minimizes FuzeVPN near the clock, without quitting it.
- The update installation did not complete. The Windows permission prompt did not go through, a program is blocking the installation, or the installer stopped partway.
- The installation was cancelled. This happens in particular when the Windows permission prompt is refused during the update.
- The installed version is not recognized as the official signed version. It is not signed, its signature is invalid, or its installation folder is not protected as FuzeVPN requires. If it does come from the FuzeVPN for Windows page, a wrong date or time in Windows can make the signature check fail.
- FuzeVPN does not recognize its installation type, installed or portable, or this app does not have its update component. Updates from the app are then disabled.
- This particular update cannot be installed from the app. Depending on the type of update released, it is installed manually from the FuzeVPN for Windows page.
- Portable version: FuzeVPN updates it by replacing its folder. This folder must be on an NTFS or ReFS drive, where your Windows account can write. The replacement may not go through because of permissions or files still in use. Your previous version then stays in its original folder or in the “.FuzeVPN-backup-…” backup, next to it.
- In some cases, the portable version must be updated manually. FuzeVPN then asks you to close it and replace its folder with the one from the new portable archive. Your account and settings are in %LOCALAPPDATA%\FuzeVPN, outside the portable folder.
Related messages
Here are the messages covered in this article, as FuzeVPN displays them.
The update installation failed.
Windows app
Windows updates are not available in this application.
Windows app
The signature of the installed version of FuzeVPN is invalid. Manually install the official signed version.
Windows app
Finish the current VPN operation before updating.
Windows app
The update service response timed out. Try again.
Windows app
The update service is unreachable. Check your Internet connection.
Windows app
This update requires manual installation from the FuzeVPN website.
Windows app
The portable update could not be applied. Your previous version is in its original folder or in the recovery backup. Error code : update_portable_replace_failed Windows code: …
Windows app
VPN shutdown could not be confirmed. The update has been stopped.
Windows app
The portable folder cannot be updated. Move FuzeVPN to a writable folder and try again.
Windows app
The download was interrupted by a network error.
Windows app
The update could not be prepared. Try again.
Windows app
This version of FuzeVPN is not signed. Manually install the official signed version to enable updates.
Windows app
The update download failed.
Windows app
Windows could not prepare the update.
Windows app
Install FuzeVPN using the official signed installer to enable updates.
Windows app
The download server rejected the request.
Windows app
Installation was cancelled.
Windows app
The installation type could not be verified. Downloading and installing updates is disabled.
Windows app
Windows could not save the update. Check disk space and permissions.
Windows app
The installer is open. Close FuzeVPN to continue.
Windows app
Close FuzeVPN to finish the update.
Windows app
The update check failed.
Windows app
The download timed out. Try again.
Windows app
Portable version: to update, close FuzeVPN and replace its folder with the one from the new portable archive.
Windows app
Other related messages
These messages already say what to do, or go away on their own.
The published release has changed. Check for updates again.
Windows app
An installation is already in progress. Try again once it has finished.
Windows app
Download the update before installing it.
Windows app