You can use Lightroom CC or 6 on your computer with Windows 10.
We have seen computers running Lightroom 5 on Windows 10 as well.
However, you can check the system requirements of Lightroom in the below link.
Thank you for replying but that is exactly why I am asking. I saw the requirements and 10 is only mentioned on 6 but I have 5.4 or so that I bought in Sept 2014. I can't buy a laptop that wont allow my expensive programs to work.
Microsoft's Windows 10 Compatibility Center says Lightroom 5 is compatible:
Here's what the Center's FAQ says about how compatibility is determined:
How is the product compatibility determined?
To determine product compatibility status for the Windows Compatibility Center, we consider the following:
The product has passed Windows certification requirements and received a logo, which indicates it has met Microsoft testing requirements for compatibility with either Windows 10, Windows 8.1, Windows RT 8.1, Windows 8, Windows RT and/or Windows 7.
The app publisher or device manufacturer stated this products works with Windows 10, Windows 8.1, Windows RT 8.1, Windows 8, Windows RT and/or Windows 7. Please note that these products have not undergone certification tests and may or may not be fully supported by the manufacturer. You should visit the manufacturer’s website for more information.
Windows 8.1 is designed with compatibility in mind. If an app or device ran on Windows 8, our goal is that it should run on Windows 8.1. During Windows development, we test most of the popular products and we are providing compatibility statements based on this testing. For products we have not tested, compatibility statements for Windows 8.1 are being provided based on the product's compatibility status for Windows 8.
We also take your feedback into account and make updates accordingly so don’t forget to vote. Since compatibility status can change, please check back for updates.
Lots of people have posted here about LR 5 running on Windows 10. There have been some problems, as summarized here, but pretty much all have solutions.