Before downloading anything, you must understand why this driver is so elusive.
The Intel Atom N2600 does not contain traditional Intel integrated graphics (like GMA or HD Graphics). Instead, it houses a PowerVR SGX545 GPU, licensed from Imagination Technologies. Intel Atom N2600 Graphics Driver Windows 10 64-bit
Can it work? Yes, but only using a legacy WDDM 1.1 driver forcibly installed on Windows 10 64-bit. Before downloading anything, you must understand why this
Visit Intel’s official download center for the Atom N2600. You will find drivers for Windows 7 and Windows Embedded 8 Standard. There is no official Intel Atom N2600 Graphics Driver Windows 10 64-bit package. Can it work
Intel’s official statement (paraphrased): "The Intel Atom N2600 processor has reached End of Life (EOL). Intel will not provide Windows 10 drivers. Using Windows 10 may result in instability or loss of features."
Despite this, the community has discovered that the Windows 8 64-bit driver (version 8.14.8.1099) can be modified or force-installed to work on Windows 10 64-bit. Not perfectly—but it works.
igdkmd64.sys from version 8.14.8.1099 has a specific hash (verify with community posts).