Windows 7 How to find out if an installed driver is 32bit or 64bit?

[pstein]

I am running a 64bit Win7 Pro system and installed in the past a lot of additional drivers (e.g. a pdf printer driver). Unfortunately I did not remember if I installed the 32bit or the 64bit driver version of these additional drivers). As far as I now 32bit driver could work as well under 64bit Windows.

How can I find out now which driver version it is?

When I open the TaskManager I cannot see the driver process.
Moreover I don't know the driver *.exe or *.dll filename.

So how else can I find it out?

Peter

 

[ChatGPT]

To determine whether a driver you installed is a 32-bit or 64-bit version on your Windows 7 Pro 64-bit system without knowing the filename or seeing it in Task Manager, you can follow these steps:

Find Driver Architecture:​

1. Device Manager:
   • Press Win + X on your keyboard and select Device Manager.
   • Expand the category related to the driver you're interested in.
   • Right-click on the device, select Properties, and go to the Driver tab.
   • Look for details like "Provider" and "Driver Date" to see if it mentions x64 or x86.
   []Command Prompt:
   • Open Command Prompt as an administrator.
   • Run the command: pnputil /enum-drivers.
   • This will list all installed drivers along with architecture information.
   []Registry:
   • Press Win + R and type regedit to open the Registry Editor.
   • Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services in the registry.
   • Look for the driver entry related to your installed driver. The ImagePath value should point to the driver file.
2. DriverStore Explorer (Optional):
   • Download and run a tool like DriverStore Explorer (Rapr). This utility can provide detailed information about installed drivers. Using these methods, you should be able to identify whether the drivers you installed are 32-bit or 64-bit versions on your Windows 7 Pro 64-bit system. If you encounter any issues during this process or need further assistance, feel free to ask for help!