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Will Windows 10 Overwrite My Data?

Sunday, June 21st, 2015 by | Filed Under: Quick Tips

More than a few of you have asked this question about Windows 10.  “Will all data and programs remain as they are? Hopefully the upgrade will not reformat the hard drive and erase all the data.”


According to Microsoft in almost every case your data should not be affected.  All of your programs, games, documents, and pictures should be fine.

However, it is always a good idea to have everything backed up when you’re doing any kind of update or just for safety’s sake in general.

~ Cynthia

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4 Responses to “Will Windows 10 Overwrite My Data?”

  1. Gilles says:

    When I did a clean install of Windows 10 release #10147, it renamed the drive letter of the small partition I was using to test this release to drive C:\ and made that partition the only bootable drive. It took me quite a while to correct the problem by using “diskpart” and Hiren’s ultimate boot utility.

  2. Keith Monson says:

    I would add to this please read the prompts carefully. There are options that will format your hard drive and that dear reader will erase your data. Also make sure the files you DO back up are the actual file and not a “link” to the file. If the icon has an arrow or the file name ends in .lnk it’s not the file you’re looking at.

  3. Shanker says:

    The data issue arises mostly if you store your files in part or full in ‘C’ drive (OS Drive). Many casual Users simply accept the default place offered by MS to save their files in My Documents/Desktop/My Pictures…etc.These are usually in ‘C’ Drive.

    Always, save data files through ‘Save As’ or change the drive offered, and save it in other drives. You can even save programs downloaded in this way, and use it for reinstall. It’s also useful to delete the default names of downloaded files and rename them before saving, so that you can recognize them when required.

  4. Grace says:

    Thank you for this tip.

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