Keep a licensed copy of R-Studio Portable on a dedicated USB drive together with WinPM (for imaging) and a hex editor. Test the driver loading procedure on a spare machine before emergency deployment.
Sometimes the drive you are trying to recover is the OS drive. You cannot install recovery software onto the same drive you are trying to save (you risk overwriting the lost data). Running R-Studio Portable from a separate USB drive eliminates this risk completely. r-studio portable
You first need a portable version of the R engine. You can find "R-Portable" on platforms like PortableApps.com . Keep a licensed copy of R-Studio Portable on