Warning in install.packages: unable to move temporary installation

Question

I\'ve found a number of questions related to this warning when installing or updating packages in R/RStudio, but none seem to completely match my situation:

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Answer 1

I fixed my instance of this problem (Windows 7) by removing the 'Read-Only' attribute of the folder R was trying to move stuff to.

I went to the Run command from the Start menu in Windows (7) and typed attrib -r +s drive:\\

Note that just right clicking the folder and trying to change properties didn't take, as per this link from Microsoft: https://support.microsoft.com/en-us/help/326549/you-cannot-view-or-change-the-read-only-or-the-system-attributes-of-fo

Hope that helps someone.

I hope this change doesn't screw me in other ways.