I also had this problem with an Asus EEE 1001px. It also would not wake from sleep mode, having to do a hard reset to restart it.
Unknown Device (ACPILEN4002) shown in Device Manager - ThinkCentre M83 Tiny, M93/p Tiny, M900 Tiny. Download driver for ACPILEN4001 device for Windows 10 x86, or install DriverPack Solution software for automatic driver download and update Popular Drivers Driver version for Windows 8.1 x86 Driver version for Windows 8 x86 Driver version for Windows 7 x86 Driver version for Windows XP x86.
I solved the problem:
Search for Recovery
Select- Go back to windows 7
Got through the menus and wait while windows 7 reinstalls
Acpi Len4001 2 & Daba3ff & 0
Now it runs fine again.
Lenovo Acpi Driver Windows 7
I didnt think it was worth upgrading to Windows 10 for the asus eee running on windows 7. In addition to the issues above, it also ran slower in general, there were compatibility issues with old software, and startup took a long time, compared to my windows 8.1 toshiba which was upgraded to windows 10 and compared to win7 on this computer.
Theres also no support or drivers for win 10 for these computers although I might add that I kept all of the drivers and so I reinstalled the suggested chipset driver (intel install) which installed ok but didnt solve any problems. I tried installing all the other drivers I had and they either didnt work even in compatibility mode or reported that a newer driver was already installed.
Acpi Vpc2004 Windows 7 X64
Therefore, I think the best solution here is to go back to Windows 7 unless you wish to forever be trying to solve problems like this.