64 bit windows 7

what is the impact of 32 bit applications on 64 bit computer
does it need to change customized applications running on 32 bit to change to work on 64 bit
Who is Participating?
Joe Winograd, EE Fellow 2017, MVE 2016, MVE 2015Connect With a Mentor DeveloperCommented:
> what is the impact of 32 bit applications on 64 bit computer

Depends on what you mean by "impact", but by most definitions — none, or very little. The 32-bit apps work fine on a 64-bit system. The only small impact is that 64-bit Windows uses a 32-bit emulator (terribly named as WOW64) to run the 32-bit apps. You may read more about it here:

You do not need to change customized applications running on a 32-bit system to work on a 64-bit system, but you do need to change them to take advantage of a 64-bit system. You may read more about it here:

Regards, Joe
aadihConnect With a Mentor Commented:
No problem. You can run 32 bit applications on a 64 bit computer. (In fact the browser I am using to type this a 32 bit application; and the macine is 64 bit.) :-)

No impact, nothing special required.
You should run 32-bit applications on a 64-bit computer without any problem. If you are talking about drivers 64-bit are the most recommended on 64-bit computers.
John HurstConnect With a Mentor Business Consultant (Owner)Commented:
If I understand all that I have read correctly, a 64-bit application like Microsoft Office expects everything around it to be 64-bit. That is not usually possible.

So on my machine, Office 2013/2010, Adobe, Java, Flash, QuickView Plus and that kind of application are ALL 32-bit applications on my 64-bit Windows 8 and Windows 7 machines.

Drivers (Network, etc.) are all 64-bit if the vendor so recommends. I use the vendor recommendation.

For the remainder of applications, I download the recommended type. For example, iTunes, Perfect Disk, WinZip, NCP Secure Entry and a few more are all 64-bit.

There is no one single answer. I stick to the approach I outlined and review any new application carefully before installing.

Another wrinkle is that I have applications (NCP, Symantec and more) that needed specific new editions for Windows 8.1.
Amit KhilnaneyConnect With a Mentor Commented:
Driver Compatibility

The only and major impact will be drivers. Make sure you have 64 bit drivers for every piece of hardware you have in your system.

Application wise no issues, they work fine.
All Courses

From novice to tech pro — start learning today.