You must have Administrator rights when installing the AnywhereUSB driver.
At this time, the current AnywhereUSB driver is v3.91.231, which is compatible with the following Windows Operating Systems:
Windows 7/8/8.1/10 32-bit/64-bit, Server 2008 R2 64-bit, Server 2012 32-bit/64-bit, and Server 2012 R2 64-bit.
Other Windows Operating Systems require using an older AnywhereUSB driver version, available from the Digi support site.
AnywhereUSB/2, AnywhereUSB/5 G2, AnywhereUSB/5 M, AnywhereUSB TS44, AnywhereUSB/14
*The legacy/1st generation AnywhereUSB/5 is no longer supported.