I upgraded to a new Windows 10 PC recently, but now I can't figure out how to import pictures from my SD card. On my old PC, an AutoPlay window popped up as soon as a card was inserted into the computer's card reader and asked what I wanted to do with the pictures on the card, (import images / open file to view the contents etc.) but the AutoPlay window doesn't appear now and I can't figure out how to import the images. If I go to my device manager/This PC, it shows the SD card as an additional drive (not as a memory card) and I can copy and paste the images from there if I have to, but I'd rather import them properly, rather than copy them, to retain the quality. Any help would be appreciated.
but I'd rather import them properly, rather than copy them, to retain the quality.
I don't know the answer to the Windows part of this question, but there's a fundamental worry you have here that I want to assure you over.
That "import" dialog box you were seeing before doesn't really do any magic. It just launches a program like Lightroom or some other photo manager, and that program's "import" operation copies the files from the card. This fundamentally no different from copying the image files by dragging them or using the file-manager's "copy-paste" commands. There will be no loss of image quality either way.
According to the answers.microsoft.com support question, How to import photos from SD card to Windows 10,
Open Control Panel > Autoplay, where you can choose what happens when you insert a card with image files on it.
From the screenshot, it appears you want to select the option, "Import photos and videos (Photos)".