Hmmm... I don't wuite understand what you mean about that. If your wondering if Windows may crash on you some time again, then it is very possible. Windows isn't the best OS, in my personal opinion. Anything can likely happen when running Windows.
How much are you backing up ? If it is just a few pictures or something, just copy them onto a cd or dvd. Another way to be sure is just putting it on an external drive. They have external hard drives for reasonable prices also. One other way is just making two partitions on your original hard drive in your laptop. One for DATA and another for Windows. So say your Window partition crashes, you can then just reformat that partition and start over. You will still have all of your data on the other partition.
Rat