Problems with Quadro K1100M on Thinkpad W540

I have a Lenovo Thinkpad W540 with dedicated Graphics (Nvidia Quadro K1100M) but the Graphic card is not recognized by the system (listed as Microsoft Basic Display Adapter) (Windows 10). I can’t install the drivers , I tried the driver from Lenovo (https://pcsupport.lenovo.com/de/de/products/laptops-and-netbooks/thinkpad-w-series-laptops/thinkpad-w540/downloads/ds104325) but nothing happens after installing this, and I tried the Nvidia driver (426.50) but this doesn’t work because it says that there would be no compatible GPU. Can anybody help me? (Sorry for my bad english (native language german))

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