Also, see if the SD Card driver shows a warning sign or not. If yes, uninstall it, unlug the SD Card reader, and restart your computer. Now, plug into the SD Card Reader and check if the issue is ...

If the SD card is not detected or recognized on your Windows 11/10 computer, then use a different USB port. You should also check your SD card for write protection and turn it off.

If the AutoPlay dialog box didn't open, click "Windows-E" to open Windows Explorer, then navigate to the icon representing the SD card. The icon is listed under Devices with Removable Storage.