A Microsoft file hosting and synchronization service.
It's MS.
It is MS Windows.
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They can call it Baked Alaska if they want to. But that doesn't make it one.
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Or in other words, I simply do not agree with their characterization of OneDrive Sync as being a "backup".
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Look through the forum index page. In the last day or two there are several people complaining about files "lost" from OneDrive in various circumstances. That is not a very good "backup" if the files can evaporate.
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I'll say it again. If you copy files to OneDrive that are not "Sync'd, then yes, that is a valid part of a backup strategy. Those files are both a second copy and an off-site copy. A vital part of a good backup strategy.
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How to Back Up Your Computer: 3-2-1
https://www.nytimes.com/wirecutter/guides/how-to-back-up-your-computer/
By Thorin KlosowskiUpdated September 29, 2021
. * What makes a good backup?
. * The tools you need to back up your computer
. * Back up your computer to the cloud with Backblaze
. * Create local Windows backups with File History
. * Create local Mac backups with Time Machine
. * How to restore your files from backups
Experts recommend the 3-2-1 rule for backup:
. * three copies of your data
. * two local (on different devices)
. * one off-site.
For most people, this means the original data on your computer, a backup on an external hard drive, and another on a cloud backup service.
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Here is another article with a sensible variation, 3-2-1-1
https://blog.storagecraft.com/its-time-to-move-past-traditional-3-2-1-backups/
But you could make the “2” step one of the 2 “local” drives could be a WORM (Write Once, Read many) drive, ie DVD-R drive.
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