Check if a process is running in 64 or 32-bit mode?

I'd like to check if a process is running in 64-bit or 32-bit mode. How can I do this? Process Explorer will tell me if the Image is 32-bit or 64-bit, is this what I should be looking at?


Solution 1:

Can we assume this is a Windows question? XP x64, Vista, 7?

In Windows 7 I believe a 32-bit application running in a 64-bit OS has a *32 after its name in the Task Manager...

Windows 7 Task Manager

Solution 2:

No need 3rd party programs !

Open Task Manager > Details, right click on columns bar Select Columns and check Platform:

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(Windows 10 and 8)