Welcome to the forum! Do u have the cable that came with the phone? U can plug it in directly to the pc. Be sure u have the settings for mass storage mode. U may so on ur PC an SD card folder then DCIM. U should be able to drag and
Drop
The other way is if u have a card reader. Before taking the SD card out from the back of ur phone, u need to unmount SD card first, then pop it out into ur card reader.