I have a new win 8 Acer computer. A reminder keeps coming on saying computer is not backed up. Should i do it?
Do you have a remote hard drive ... if yes, go ahead and tell it to do it. Pretty simple thing.
Some will back up to a data partition on the same windows hard drive, but that's really not recommended - because if your hard drive dies, then you have lost your personal files. It takes some minor configuring to do that too.
Back up is a personal choice. Recovery disk(s) are a must.