R error Cannot install package while starting R

Question

I'm running R on my windows machine, but when I try to install any package, I get an error message like this:

R version 3.1.0 (2014-04-10) -- "Spring Dance"
Copyright (C) 2014 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64 (64-bit)


R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

[Workspace loaded from ~/.RData]

**Error installing package: 'C:\Program' is not recognized as an internal or external command,
operable program or batch file.

Error installing package: 'C:\Program' is not recognized as an internal or external command,
operable program or batch file.**

Loading required package: arules
Loading required package: Matrix

Attaching package: ‘arules’

The following objects are masked from ‘package:base’:

    %in%, write

Answer 1

Try to reinstall R. I got a similar error and re-installation fixed it.

 There's a problem while reloading an old .RData file, which does not exist.