For those who seek to install their NanoDrop 1000 under Windows 10, I have a solution for you:
First, retrieve the installation file (ND1000_3.8.1.exe) from the ThermoFisher website.
Unpack it using for example 7zip (right click -> extract here)
From the unpacked folder "ND1000_3.8.1" run the following setup files
1) ND1000/LVRuntime7/lvruntimeeng71.msi
2) ND1000/NI-VISA 4.4.1/setup.exe
3) ND1000/NanoDrop 1000 V3.8.1.msi
4) 64bitdriver/NanoDrip 1000 64bit Driver.msi
5) Now copy and paste the following text into a file called bosdescriptor.reg
; This file is needed to install NanoDrop 1000 under Windows 10
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\usbflags\245710020002]
"SkipBOSDescriptorQuery"=dword:00000001
; End of file
6) add the created .reg file to the windows registry by double clicking it
7) Plug in the device