Fix the GSX Pro “You canceled the download” error in MSFS by checking installer permissions, security blocks, free space and failed package data.
In Microsoft Flight Simulator, the GSX Pro “You canceled the download of this package” error normally means the FSDT Universal Installer could not finish or save a package—not that you clicked Cancel. Close everything, restart Windows, run the installer as administrator, remove security or network blocks, and retry the GSX update.
Why does GSX say the download was cancelled when I did not cancel it?
The message is a generic response to an interrupted or rejected package transfer. An actual user cancellation is only one possible cause.
| When the error appears | Most likely cause |
|---|---|
| Immediately, on every package | The installer is blocked, lacks write permission or cannot reach the download service |
| At the same point each time | A damaged partial package, security quarantine or problem with that remote package |
| At different points | An unstable connection, VPN, proxy or storage fault |
| After reaching or approaching 100% | Insufficient temporary space, failed verification or antivirus intervention |
A mistake we see constantly is checking only the GSX destination drive. The installer may stage data on the Windows system drive first, so both that drive and the GSX installation drive need free space.
How do I fix the GSX Pro package download error?
Close MSFS and every GSX process. Exit Microsoft Flight Simulator, the FSDT Universal Installer and Couatl. Check Task Manager and end a remaining installer or Couatl process before trying again; do not run two installer instances.
Restart Windows. This releases locked temporary files and abandoned installer processes. After restarting, confirm that the GSX installation drive is connected, writable and using the expected drive letter.
Check free space on both drives. Leave adequate room on the Windows system drive as well as the drive containing the Addon Manager installation. Emptying ordinary Windows temporary files can help, but do not delete unfamiliar GSX or Addon Manager folders manually.
Run the FSDT Universal Installer as administrator. Let any installer self-update complete, select the correct simulator—MSFS 2020 or MSFS 2024—and use the GSX Pro Update or Install control. Our complete GSX installer and package-link procedure covers the normal repair sequence.
Inspect security protection. Open Windows Security’s protection history, or the equivalent screen in your antivirus, and look for a blocked installer, Couatl component or downloaded package. Restore only files obtained through the genuine GSX installer, then allow the installer and its Addon Manager location. Controlled folder access can also prevent the final package from being written. Do not leave antivirus protection disabled.
Remove network interference. Temporarily disconnect a VPN or proxy, avoid filtered workplace or public networks, and use a stable wired connection where possible. If unrelated simulator downloads are also incomplete or corrupt, work through our checks for damaged downloads, storage and permission failures.
Retry GSX alone. If Update repeatedly fails on the same package, use the Universal Installer’s own uninstall option for GSX Pro, restart the installer and reinstall GSX. Back up any custom aircraft or airport profiles first. Do not remove the whole Addon Manager installation unless there is evidence that it is damaged, particularly if it contains other products.
If the same package still fails after a reboot, a clean GSX reinstall and a test on another connection, stop repeatedly deleting files. A remote package may be temporarily unavailable; retrying later is safer than manually extracting an incomplete download.
Should I delete GSX files from the Community folder?
No—not as the first fix. GSX is managed through the FSDT installer, with simulator package links placed in the relevant Community folder. Manually deleting, copying or extracting GSX packages can leave duplicate folders or broken links while the main installation remains elsewhere.
If you already moved GSX files by hand, remove only the manual duplicate and let the Universal Installer recreate the correct package links. Make sure it is targeting the Community folder used by the same MSFS version you launch.
What if the download completes but GSX still will not start?
A successful download rules out this package-transfer error, but it does not prove that Couatl is running or that the Community-folder links are valid. If the GSX menu remains absent, use our diagnostic sequence for Couatl, security blocks and broken package links rather than downloading the package again.