Here is a handy Script by fxsaber that can be used to stop MT5 from prompting you to update.
The problem with automatic update downloads is that even if you click "No" in the update pop-up, the uninstalled update will hang--causing MT5 to malfunction. The Script below can prevent MT5 from updating to the experimental Beta Builds/versions because it blocks all automatic update downloads.
Beta Builds are not official Release Builds. Beta Builds are for user testing--not live trading. Release Builds are stable, while Beta builds are unstable. When this Blog was posted, for example, the latest official Release Build was 5430 while the latest Beta Build was 5495.
Metaquotes generally pushes out multiple consecutive Beta Builds before they push out the next official Release Build. Additionally, some broker-dealers will haphazardly push out Beta Builds. The only way to ensure that you're using the latest official Release Build is to search the mql5.com Forum for a consensus as to its Build number.
The Script includes fxsaber's MTTester file and requires DLL access, so be sure to check-on "Allow DLL imports" upon attaching it to your chart. If you are not comfortable with enabling DLL's or not familiar with fxsaber's work, then simply don't use the Script. To be clear, I personally tested it and had no problem whatsoever.
After enabling DLL's, you will see the OK button and click it.
To turn updates back on, just reattach the Script to your chart and it will ask you if you want to switch from OFF to ON (or ON to OFF if your last setting was ON).
Both the Script and the include file are attached below in this Blog post. The LiveUpdate_On_Off.mq5 file should be saved to your MQL5==>Scripts folder, and the MTTester.mqh file must be saved to your MQL5==>Include folder.
If you're already in a jam with a Beta Build due to your broker-dealer's erroneous updates, you can roll back to earlier Builds/versions by downloading Alain Verleyen's archived MT5 installers. You need to log into/sign up with Telegram to do so:
