Shotwell is not available for Windows but there are plenty of alternatives that runs on Windows with similar functionality. The best Windows alternative is XnView MP. It's not free, so if you're looking for a free alternative, you could try digiKam or darktable. If that doesn't suit you, our users have ranked more than 50 alternatives to Shotwell and loads of them are available for Windows so hopefully you can find a suitable replacement. Other interesting Windows alternatives to Shotwell are Adobe Lightroom (Paid), PhotoPrism (Freemium, Open Source), XnView (Free Personal) and RawTherapee (Free, Open Source).
digiKam is an advanced digital photo management application which makes importing and organizing digital photos a "snap". The photos are organized in albums which can be sorted chronologically, by folder layout or by custom collections.
Most users think digiKam is a great alternative to Shotwell.
darktable is a virtual lighttable and darkroom for photographers: it manages your digital negatives in a database and lets you view them through a zoomable lighttable. it also enables you to develop raw images and enhance them.
PhotoPrism® is an AI-powered app for browsing, organizing & sharing your photo collection. It makes use of the latest technologies to tag and find pictures automatically without getting in your way. You can run it at home, on a private server, or in the cloud.