Extension: dup
What is it? Duplicate Backup File
Where’s it from? Many programs create dup files so you will have a spare in case the original gets corrupted.
How do I use it? The program that created the dup file uses it.
Can I safely delete or move it? Yes.
Can it be dangerous? No
–David Hakala
by Tina Gasperson
It’s important to keep your important computer files backed up, because almost inevitably your hard drive will fail and all the data on it will be gone forever. In fact, if you can back up your documents, photos, and videos in more than one location, you’ll be doubly safe. Archive CDs and DVDs only last for just so long and can be lost or broken, so having a “backup backup” online might be the solution you need. Fortunately there are many online backup services you can take advantage of. I recommend that you look for a service that has been around for a while and has a good reputation. One such service is Mozy.com.
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