If you know your hardware brand, these are the most common official sources: Realtek Card Reader Drivers Intel Chipset Software
If you are using a very old computer (pre-2008), the internal reader might only support standard SD cards (up to 2GB). In this case, no driver can fix it; you will need a cheap USB SDHC/SDXC Adapter . 4. Direct Download Links (Common Hardware) draiver dlia sdhc skachat
Here is a quick guide on how to get your card reader working again. 1. The "Hidden" Truth About SDHC Drivers If you know your hardware brand, these are
Right-click your card reader (common names: Realtek, Alcor, BayHub, or O2Micro). Select > Search automatically for drivers . Direct Download Links (Common Hardware) Here is a
Check the tiny "Lock" switch on the side of the SD card. If it's pushed down, the card may not mount properly on some systems.
Instead of searching for "SDHC download," you should update the hardware that reads the card: