Hi Rouffian,
I can see why this is frustrating, especially when you need access to the full DCIM folder to organize a large number of photos by date.
Since the same phone and USB cable display all photos correctly on another PC, the photos and cable are likely fine. The issue appears to be specific to the affected PC, possibly its USB/MTP device connection or the current Insider build.
Please try the following:
- Connect the phone, keep it unlocked, then open the USB notification on the phone and select Transferring files / Android Auto rather than charging only.
- On the PC, open Device Manager, expand Portable Devices, right-click the Samsung phone or MTP USB Device, select Uninstall device, and then disconnect and reconnect the phone so Windows can detect it again.
- Open the Windows Photos app and select Import > From a connected device to check whether the older photos are detected there.
- If possible, try another USB port on the affected PC without using a hub or adapter.
Could you also share the full Windows build number shown under Settings > System > About > OS build, and confirm whether the missing photos are stored locally on the phone or on a microSD card?
If the issue remains after the MTP device is reinstalled, please report it through Feedback Hub by pressing Windows key + F. Include the build number and mention that the same Samsung S20 and cable show the complete DCIM folder on another PC. This comparison may help the Windows Insider team investigate the PC-specific behavior.
Microsoft’s official USB import guidance is available here: Import photos and videos from phone to PC Thank you so much for your understanding.
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