For original drive restore:
This is a "bare metal" method... It ignores anything on the drive and just overwrites any and everything. This automatically reinstates all partitions (4 in all) and everything within them. Basically a compressed drive image is extracted and the output is written directly to the drive. All with one linux command.
For original partition restore:
This assumes that the original GPT partition structure is intact. Specifically the start and end of a particular partition is unchanged from new. If you bork your windows partition or install something else there and change your mind, you can just overwrite it with an original or earlier image.
Again, one linux command per partition restore.
Non original partition structure:
For those who have modded any or all partitions (i.e. dumped the office crud) and enlarged the windows partition... You can take "bare metal" images and use these as your base.. Any new alterations can be reverted easily.
I appreciate that most people will use a file system backup/restore method. That's fine if it suits you. I do use such a file/directory backup technique for incremental backups on a couple of development machines.
I often change operating systems around on test machines. The time required for reformatting/changing file system types and reinstalling software etc. can be "non trivial". This reduces "play time", a big no-no.
I therefore use this technique to allow fast OS changes. In fact, I've got 6 OS's imaged for the Linx 10, let alone those for other systems.
My philosophy with windows is this: It **CAN** go wrong, and go wrong in a way that requires non-trivial intervention. O.K. the full restore method as implemented on the tablet is fine as far as it goes.. I personally would rather use the drive space for other things...
If something happens to the recovery partition then you are stuffed.. (Yes, I've brought a friends Linx 10 back to life after a windows update crash damaged both the windows and recovery partitions.. using an earlier version of these images.)