Me three
Acronis is an absolute pain. I have experience it quite a few times now. It causes all sorts of problems until you realise you have to increase the stack size.
First time, on my own computer, I was tearing my hair out until I googled the problem & lo...there were lots & lots of listings.
Once increased it works ok but I prefer not to use it. The problem is what to use? Windows backup is rarely backwards compatible.