$ wine R
[...]
Warning in check_r_libs_env_vars() :
Environment variable 'R_LIBS_USER' specifies 2 non-existing folders 'C', '\users\hb\My Documents/R/win-library/3.3' (expands to 'Z:\home\hb\C', 'Z:\users\hb\My Documents\R\win-library\3.3') which R ignores and therefore are not used in .libPaths()
Issue
The following warning is a false positive: