Hi,
Yes of course I use install.packages() in Rstudio and R(RGui 64bit)
.libPaths() will get
[1] "C:/Users/user/Documents/R/win-library/3.4"
[2] "C:/Program Files/R/R-3.4.2/library"
Both in Rstudio and R, the same result
My windows 10 is Windows 10 Pro 1709, OS build 16299.64
Actually, I'm wondering what does this mean
While I didn't encounter such problems in R with the same command.