Since it's written in Python it should work on both 32-bit and 64-bit Windows.
Can you post a screenshot of the error so we have a better idea of the problem you are experiencing?
Yes, here is it:
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.postimg.cc%2FNMvDh5SC%2Fel-er1.jpg&t=665&c=UR8EoND0seCJ5A)
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.postimg.cc%2FY976nTLJ%2Fel-er2.jpg&t=665&c=OKtCKRIDQ8czfA)
(The same type of error for any other versions -- portable, standalone and installed -- higher than 3.0.3.)
So you're getting errror c0000005 when you open Electrum. Can you try turning off Data Execution Prevention for electrum and try running it again?
There's a tutorial on a website on how to do it. Don't attempt any of the other solutions, just the one that turns off DEP.
Windows offers an integrated feature for protecting working memory – called Data Execution Prevention (DEP) – which may accidentally cause access problems like 0xc0000005. This is because some programs are incompatible with this security feature, meaning certain actions will always result in the error. The simplest solution in this case is to deactivate the protection mechanism for the respective application. To do so, make sure you have administrator rights and follow these steps:
Start the “Run” dialog via the Start menu or using the key combination [Windows] + [R].
Enter “sysdm.cpl” and press the [Enter] key to open the System Settings.
Switch to the “Advanced” tab and click on the “Settings” button in the “Performance” section.
Go to the “Data Execution Prevention” tab and select the point “Activate Data Execution Prevention for all programs and services except for those selected”.
Click on “Add” and search for the .exe file of the problematic program.
Save the change by clicking “Apply” and then “OK”.
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Fwww.ionos.com%2Fdigitalguide%2Ffileadmin%2FDigitalGuide%2FScreenshots_2020%2F0xc0000005-solution1.jpg&t=665&c=oIv6O8Sld9Jc9g)
I will ask again,
do you have any antivirus running? They are known to interfere with a lot of programs.
If this doesn't work then maybe there's a bug with the way Electrum generates the binaries. They use PyInstaller to make the installer and portable program and that doesn't officially support Windows 7 although it runs fine on it.