How do i restore windows.old?

If Windows.old is still there, then it should ask u on boot-up to choose which OS u want to use.

If u deleted it then it's just gone and use the recovery disk.

hey you good enough ? i could no longer for my part attempt to repair your historical home windows registry settings considering the fact that its no longer a sensible transfer. allow me provide an explanation for to you !. in case your laptop has a registry drawback then the one strategy to safely reslove that is by means of getting rid of all of the information and settings off your difficult force then reinstalling home windows. i could no longer for my part advise utilising a registry purifier considering the fact that they may be able to reason extra damage than well and can make a correct mess off the whole lot. then a million day your laptop will simply crash and no longer paintings safely considering the fact that you will have eliminated all of the key documents for home windows to safely function. i've visible fairly plenty of peoples computer systems in a nasty means simply considering the fact that they've suggestion it used to be a sensible transfer to make use of a registry purifier after which they cant recognize why there laptop isnt operating safely. after which i have got to deliver them the unhealthy information that there registry is corrupt and start the task of sorting the whole lot out for them and cost them appropiately for my time and talents i've. well good fortune and glad computing. bye four now,chris.