Thank you for following up. After more research it appears that this problem is not due simply to my external SSD. It has to do with the fact I have thousands of pictures on the SSD and am using the Windows 11 Photos app to view them. From reading other Windows 11 forums, it appears that other users are having problems with the Photos app causing "Shell Infrastructure Host" to use high CPU and not release it. After I stopped using the Windows 11 Photos app , I no longer have the problem. I found a way to instead use the old classic "Windows Photo Viewer" app. I think the problem with the Windows 11 Photos app may only happen when you have thousands of photos and/or these photos are on an external SSD. I would need to do more testing. I may need to open another question about this as it relates to the Photos app.
Hi Tom B Overton
Thank you for your reply.
From what you’ve described,it caused by the photo app.
So the only way to solve this problem is to change the right photo app.
You can also try pressing Windows + F for feedback questions to Microsoft and wait for the engineers to fix it.
I hope the information provided is useful to you, if you have any further questions please feel free to contact our support.
Best Regards,
Derrick Qian | Microsoft Community Support Specialist
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