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Consider the following scenario:
In this scenario you may notice a registry sub-key labeled “Wow6432Node” and feel that the system may have been incorrectly installed or upgraded.
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This registry key is typically used for 32 bit applications on 64 bit machines. If they are present on x86 machines, they do not cause any issues as they are not used.
Registry Keys Affected by WOW64
32-bit and 64-bit Application Data in the Registry
How to Determine Windows 7 Platform:
There are a number of tools that you can use to identify which platform is installed on the system. Below are two ways which you can use to help identify the platform
Using The System Information Tool to view Processor Architecture:
a. Click on the Start button
b. In the Search box type the command “MSINFO32” without the quotes
c. In the left-hand pane click on System Summary
d. In the right hand pane view the entry labeled “System Type”
If the entry states “x86-Based PC” this is 32 Bit Platform
If the entry states “x64-Based PC” this is 64 Bit Platform
Using the Set Command to Display Processor Architecture:
a. Open an Administrative command prompt
b. Type the following command:
If the result is “PROCESSOR_ARCHITECTURE=x86” this is 32 Bit Platform
If the result is “PROCESSOR_ARCHITECTURE=AMD64” this is 64 Bit Platform
(http://go.microsoft.com/fwlink/?LinkId=151500)for other considerations.
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