No issues for aeroflyRC8 user under Win10:

The aeroflyRC8 is suitable for Win10 without modifications.
Please check the official Infos on the Windows support pages how to upgrade from Win7 to Win10.

aeroflyRC7 users should note:

The aeroflyRC7 is still usable under Win8 and Win10.
The developers of the aerofly simulators will support the aeroflyRC8 for Win10 in future. Because software and hardware are constantly evolving, IKARUS offers a discounted upgrade from aeroflyRC7 to aeroflyRC8.

See all upgrades from RC7 to RC8 here

Importand notes for all aerofly5 users:

The aerofly5 was released in 2007 and is no longer supported. If you still use an aerofly5 under Win7 we recommend an update to Win10 and upgrade to the aeroflyRC7. 

Important: You can also use your IKARUS-USB-Controller or the IKARUS-USB-Interface of the aerofly5 on the aeroflyRC7 or aeroflyRC8 and also under Win10!

See all upgrades from aerofly5 to RC7 here

Importand notes for all AFPD users:

The AFPD was developed under WinXP and can hardly be used with current PCs and graphics cards. Currently IKARUS offers a discounted DVD upgrade from AFPD to RC7 ULTIMATE. 

Important: You can also use your IKARUS-USB-Controller or the IKARUS-USB-Interface of the AFPD on the aeroflyRC7 or aeroflyRC8 and also under Win10!

Check the DVD-Upgrade from AFPD to RC7 here

Importand notes for all easyFly users:

The easyFly is up to 25 years old and was once developed under Win95/XP. From Win8 and newer the USB controllers are no longer recognized, because Windows has fundamentally changed the USB drivers in 2013. The manufacturers of the graphics cards also have stopped their driver support for the most part.
With the introduction of Win8 in 2013, IKARUS promoted the upgrade from easyFly4 to aeroflyRC7 with discounts for many years.

Important: We strongly recommend not to use computers with Win7 online anymore from January 2020.