Metatrader 5 is not supporting 32-bit Windows.
It means that MT5 must not work on Windows 7 and Windows 8 with 32-bit.
More details:
Forum on trading, automated trading systems and testing trading strategies
William Roeder, 2021.07.29 13:12
The MetaTrader platforms will no longer support Windows XP, Windows 2003 and Windows Vista after 01 October 2017.
Support for Windows XP / Windows 2003 / Windows Vista to be discontinued after 01 October 2017 - General - MQL5 programming forum 2017.06.01
Support for the 32-bit platform version was discontinued 20.03, after the release of build 2361. We strongly recommend upgrading to the 64-bit MetaTrader 4 5 version in order to access all the platform's features without any limitation.
Windows 7 extended support period begins in January 2020 when Windows 7 support ended officially, and it ends in January 2023 for good.
New MetaTrader 4 Platform build 1220 - MQL4 programming forum - Page 3 #26 2020.01.22
Forum on trading, automated trading systems and testing trading strategies
Sergey Golubev, 2021.09.09 05:23
1. Windows 32-bit is not supported by Metatrader 5 anymore.
So, Metatrader 5 will not be started/opened in case your Windows is 32-bit.
You may check it when you are able to open MT5:
2. Several traders had this issue (it is what I can read on this forum), and this issue was related to their anti-virus and/or firewall in their Windows.
Yes, several users fixed this issue by themselves, and they told to all of us: "it is issue related to anti-virus and/or firewall."
Two users are from Russian forum and one from this forum.
So, close your antivirus (turn it off) and made an exception in antivirus for Metatrader.
3. beta builds; try to install released/stable version - look at post #9 and on the following:
4. Are you using some external VPS?
Because some VPS providers were banned from the Market and from mql5 portal.
My PCs aren't 32 bits. They're 64 bits.
I attached a photo of Blue Screen of Death.
Metatrader 5 is not supporting 32-bit Windows.
It means that MT5 must not work on Windows 7 and Windows 8 with 32-bit.
More details:
No one knows your PCs - about 32-bit or 64-bit (you knows only).
I just collected many cases from the forum and replied to you with many reasons such as the following:
- old versions of Windows;
- old builds of MT5;
- beta builds of MT5;
- your antivirus (a lot of cases came from anrivirus);
- your EA which you optimized ("global variables" issue for example);
- some external VPS providers were banned from mql5 services - for example;
- more.
You can select your reason for possible fixing.
But most of the cases related to "can not open/start MT5" came from antivirus which the users installed on their PCs.

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