Will you need to repeat? I don't know but the safest way is to create regular (once per month?) backup images of your C: drive.


For this purpose I use 'Macrium Reflect' Free edition. This allows you to create an external bootable drive for recovery purposes as well as creating 'Full' images and 'Differential' images. In my case this external drive is a 500 GB SSD which allows me to use it for booting into Windows PE mode as well as storing my images. USB sticks are not as safe as SSDs so I do not recommend using USB sticks for this purpose.

There are other free backup software programs out there so I suggest you do some research. I tried AOMEI Backupper but I found MR better in my case. Others may beg to differ.