• This folder should be under gVim's $HOME location (C:\Users\USERNAME by default).
• There should be, at the same level as vimfiles, another folder called vimbackups. This is where the temporary backups lives.
• gVim will look for the _vimrc file under $HOME\_vimrc. There needs to be a file there with that name that sources the _vimrc in here:

source ~\vimfiles\_vimrc

Vundle is configured in the _vimrc file, but needs to be installed manually in each new machine using this file. To install navigate to $HOME\vimfiles and run in cmd:

git clone https://github.com/VundleVim/Vundle.vim.git ./bundle/Vundle.vim

After Vundle is installed, run from inside vim

:PluginInstall

• Vundle.vim: Plugin manager
• NERDTree: Tree filesystem display
• Ctrl-P: Fuzzy file finder