how to install guest additions virtualbox
VirtualBox Guest Additions Installation on Windows 10 Guest Virtual Machine. As of now Windows 10 is not officially supported by Oracle VirtualBox, guest additions do not work properly. Even the installation is not straight forward. If you run the guest additions exe file directly, it will show below error message. It is due to compatibility issue with the latest Windows 10 OS. There is a workaround to install it successfully. Change the compatibility mode to Windows 8 then execute the file. Right click on corresponding exe file ( 32bit or 64bit), go to Properties and under Compatibility tab, select Windows 8 then press Apply. After changing compatibility mode, execute the exe file. VirtualBox guest additions will install this time successfully.