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    <p>I am dealing with a similar case now, and a warning - Time
      machine requires a good bit of working space <br>
      SO if you are having space issues, time machine will not work even
      incrementally.</p>
    <p>As 2nd drive is the best solution. There are various 'diff'
      versions that can do bulk and sub-directory comparisons.<br>
      Well worth having.</p>
    <p>Also, I have found switching from iPhoto to Photo appears to
      leave a large number of complex working files,<br>
      sorting that out now.</p>
    <p>In general, images and worse videos is what fills up a disk, it
      takes 1000's of documents to take the same place as one video.<br>
      Also, if the older machine backup includes system images and/or
      downloaded installers (usually many copies) <br>
      those can be deleted - they are of no use.</p>
    <p>Advanced technical help is often very warned, think about it -
      few people have a car without regular use of a shop.<br>
      Computers are equally or more complex.<br>
    </p>
    <p>Good luck<br>
    </p>
    <p>Rich<br>
    </p>
    <div class="moz-cite-prefix">On 1/3/2020 8:10 AM, Hai Nguyen Ly via
      Hidden-discuss wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:71021179-87A4-44C0-BE5B-833AF8231D0B@gmail.com">
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      <div class="">Hi Elyssa:</div>
      <div class="">I highly recommend starting the process by making a
        time machine backup of your newest MacBook using an external
        drive. Once this is done, I would make a bootable copy of your
        MacBook drive using software such as Super Duper or Carbon Copy
        Cloner. Once the bootable drive has been created, you might
        consider booting from this drive to verify that works. Once this
        bootable drive has been verified, shut down your mac and
        disconnect any attached drives. After the attached drives have
        been disconnected, you can power back on the machine and start
        deleting user's and contents to free up space with the knowledge
        that you have two backups just in case something goes sideways.
        Regarding data backups, remember the mantra, two is one and one
        is none.</div>
      <div class="">After you have freed up space on your MacBook, use
        another external drive for active time machine backups of your
        cleaned up Mac. Depending on the importance of the data, it may
        be worth considering keeping an encrypted bootable backup drive
        in another location.</div>
      <div class="">I hope this helps a bit. Please feel free to reach
        out off-list if you would like clarification regarding any of
        the above.</div>
      <div class=""><br class="">
      </div>
      <div class="">Cordially:</div>
      <div class="">Hai Nguyen Ly</div>
      <div><br class="">
        <blockquote type="cite" class="">
          <div class="">On Jan 3, 2020, at 12:43 AM, Elyssa Serrilli via
            Hidden-discuss <<a
              href="mailto:hidden-discuss@lists.hidden-tech.net"
              class="" moz-do-not-send="true">hidden-discuss@lists.hidden-tech.net</a>>
            wrote:</div>
          <br class="Apple-interchange-newline">
          <div class="">
            <div dir="ltr" class="">
              <div class="gmail_default"
                style="font-family:verdana,sans-serif">Hey friends and
                neighbors,</div>
              <div class="gmail_default"
                style="font-family:verdana,sans-serif"><br class="">
              </div>
              <div class="gmail_default"
                style="font-family:verdana,sans-serif">A few years ago,
                my old Macbook died.  Some nice folks were able to
                "rescue the data", and put it on my new Macbook.  They
                created a new user to do this, and duplicate files of
                all my data and apps.  Then my old new Macbook died. 
                Some nice folks were able to "rescue the data", and put
                it on my new new Macbook.  My new new Macbook has three
                users on it, each with the old old data 3 times, and the
                old data 2 times and the new new data once.  This
                sucks.  Almost all my memory is used up.</div>
              <div class="gmail_default"
                style="font-family:verdana,sans-serif"><br class="">
              </div>
              <div class="gmail_default"
                style="font-family:verdana,sans-serif">I tried to
                download a duplicate file deleter app, but I couldn't
                because I don't have enough memory to download the one
                app, and I don't have a recent enough version of Mac Os
                to download the other.</div>
              <div class="gmail_default"
                style="font-family:verdana,sans-serif"><br class="">
              </div>
              <div class="gmail_default"
                style="font-family:verdana,sans-serif">What can I do?  I
                have kerzillions of files.  I tried going through the
                list one by one using a "Smart Folder", but I have over
                12,000 just jpgs.  I have an external hard drive... I
                wonder if that could be put to good use in this
                endeavor.</div>
              <div class="gmail_default"
                style="font-family:verdana,sans-serif"><br class="">
              </div>
              <div class="gmail_default"
                style="font-family:verdana,sans-serif">Oh good techies
                of the valley... what do you know about this? <3</div>
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                                                          <div class=""><font
                                                          class=""
                                                          size="4"
                                                          face="garamond,
                                                          times new
                                                          roman, serif">In
                                                          the dance of
                                                          Servic<span
                                                          class="">e to
                                                          all Life <br
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                                                          In</span><span
                                                          class=""></span> Magycke<span
                                                          class=""> and</span>
                                                          Divine Play</font><br
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                                                          class=""><span
                                                          style=""
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                                                          face="garamond,
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                                                          roman, serif">Elyssa
                                                          Marie
                                                          Serrilli </font></span>
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style="font-size:12.8px" class=""><i style="font-family: "trebuchet
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                                                          "trebuchet
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                                                          class="">Cultural
                                                          Engineer<br
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                                                          </span><b
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        </blockquote>
      </div>
    </blockquote>
    <pre class="moz-signature" cols="72">-- 
Rich Roth
CEO TnR Global

Bio and personal blog: <a class="moz-txt-link-freetext" href="http://rizbang.com">http://rizbang.com</a>
Building the really big sites:      <a class="moz-txt-link-freetext" href="http://www.tnrglobal.com">http://www.tnrglobal.com</a>
Small/Soho business in the PV:        <a class="moz-txt-link-freetext" href="http://www.hidden-tech.net">http://www.hidden-tech.net</a>
Places to meet for business:        <a class="moz-txt-link-freetext" href="http://www.meetmewhere.com">http://www.meetmewhere.com</a>
And for relaxation:        <a class="moz-txt-link-freetext" href="http://www.welovemuseums.com">http://www.welovemuseums.com</a>
     <a class="moz-txt-link-freetext" href="http://www.artonmytv.com/">http://www.artonmytv.com/</a>
Helping move the world:             <a class="moz-txt-link-freetext" href="http://www.earththrives.com">http://www.earththrives.com</a></pre>
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