If your Windows OS is 64-bit, sometimes you need to know if a running app is 64-bit. The simplest way to determine this is via the Windows Task Manager (Ctrl+Shift+Esc). In the Processes tab, you’ll see a list of Image Names (running apps) along with the bit-ness indicator of “*32”. If it doesn’t have the “*32” in the name, it’s running 64-bit natively.
Often times, knowing this will also help you determine if the app is installed in “Program Files” or “Program Files(x86)”, for 64 and 32-bit respectively.
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