Do you mean you want to clean install windows??
Well if thats the case then make sure not to format any partition, and just install on 3rd partition and later after setting up ur device, you may use diskclean utility to get rid of old windows.
If you do not break the partitions and especially the last partition named Bios_rvy, then in future you will be able to factory reset your pc..
By the way for any new msi user, or any pc users, i strongly recommend to backup the recovery folder of their c drive to archive.org so that they or any other folk with same model will be able to factory reset their pc.
So if you have fast internet, make a backup of the recovery image from Bios_rvy to archive.org or atleast recovery folder of c drive. Then you can proceed with your clean install as mentioned above.