Windows won’t Detect Second Monitor – Step by Step Guide – Fixed

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Step 1: Update graphics card (aka. video card) via Device Manager. If Step 1 does not work, proceed to Step 2.

Step 2: Update your graphics card (aka video card) by entering the graphics card name plus the word “latest driver” into Google and downloading the appropriate driver via the manufacturer’s website. If step 2 does not work, proceed to step 3.

Step 3: Update the graphics card (aka video card) via Snappy Driver Installer (SDI)—https://sdi-tool.org/. If step 3 does not work, proceed to step 4.

Step 4: You have to buy a new graphics card compatible with your current Windows version and your motherboard.

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