Trying to "bundle install" (Railsinstaller 2.2) on a differnt drive

[STGHMAAV]

Because my SSD C: (Also where Windows is) is full, I installed it on my hard drive D: (I say that in case it's relevant to the problem), i'm trying to execute "bundle install! but it doesn't seem to work, I checked the files in \bin, and they all have the correct folder where "ruby.exe" is. When I try to do the "bundle install" I get the " HOME environment variable (or HOMEDRIVE and HOMEPATH) must be set and point to a directory (RuntimeError)" error. Is this a problem because my HOME is on my SSD C:, and not in my hard drive D: ? How can I possibly solve it?