Cannot activate Office Apps with High Sierra

Anonymous
2024-10-02T16:36:17+00:00

I have deleted everything and re-installed High Sierra on an old Macbook Pro. I have an Office 365 account and downloaded and installed Office (version 16.43). When first trying to use any of the Apps (Word, for example), I get a welcome page telling me all the great things I can get and then a window to enter in my Microsoft account email address. I then get a blank window where, when logging in to my account from a browser), I would need to enter my password. The blank screen never changes. Having done a clean install of the OS, there shouldn’t be any remaining bits of Microsoft licence.

Various web pages give conflicting advice about whether or not Office can still be used, albeit without support, or not with High Sierra. Can anyone give me the latest firm evidence about the situation and, if it is possible, suggestions as to how I can activate Office 365?

Microsoft 365 and Office | Install, redeem, activate | For home | MacOS

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  1. Anonymous
    2024-12-16T00:21:24+00:00

    Thank you for your reply, some progress but no success yet.

    Shortcut i : /oauth20_authorize.srf    then press ENTER

    shortcut f : login.live.com   then press ENTER

    Launch the App to validate enter user and next

    Within the intercepted request, modify the following response properties: 

    a. Response code (shortcut e c ): 302   press ENTER

    b. Response headers (shortcut e 9 , then a to add row): press ENTER

    Once your cursor is below the content length row, you should type 

    Location then press TAB to move cursor under Value column

    Then paste the URL you copied before (the one that looks like "https://login.live.com/oauth20_authorize.srf? lc=1046#access_token=..." 

    YES The end result is what is displayed in https://gist.github.com/user- attachments/assets/78f20893-9eb8-4ac6-965f-65ec6066fa26

    I am stuck from here

    But when press ESC to stop editing it highlight the whole text in darker colour screenshot attached ![](https://learn-attachment.microsoft.com/api/attachments/60e13b20-47ac-403b-b1de-6c871d977275?platform=QnA , not sure if it properly validate the entry?

    When I press q once,   I return first to the Flow Details window with the 3 tabs: request intercepted Response Detail

    I have to press q again to return to Flow and then if I press a nothing really happen, see attached screenshot?

    ![](https://learn-attachment.microsoft.com/api/attachments/47189005-535b-41a5-97e2-07fd5b406bd2?platform=QnA

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  2. Anonymous
    2024-12-15T14:40:40+00:00

    Hello Rafael 

    My name is Jean-Luc , long time Mac user but very poor knowledge on using terminal interface, getting older does not help as well.

    Thank you so much for your tutorial on:  How Install Office 2019 on old Mac OS when you're stuck on a blank authentication page

    Wonder if you can assist me, I am doing something wrong at the end of the process? ( I did go a few time through the mitmproxy tutorial about intercept and modification but I am doing something wrong?)

    I am able to go through to step 9 iv of your tutorial: 

    Within the intercepted request, modify the following response properties: 


    Once I select the intercept with the arrow, I press enter

    then using the arrow>> I move to the Response field

    a. Response code (shortcut e c ): 302

    I type   ethen**** cthen302thenenter

    a quick confirmation message is shown in red for a few secondsAlert: [00:17:47:128] Set status_code on 1 flows

    So up to here I guess I might be correct?

    b. Response headers (shortcut e 9 , then a to add row):

    I type   ethen**** 9thena


    a. Key: Location 


    b. Value: Full URL with the access token you copied earlier
> 

    From here I am lost at what to do

    now my window shows in a darken background

    Edit Response headers

    Key                                                      Value

    below  on a white Background

    content-length                                     0

    My cursor in then placed a line below the word content-length****what should I do?

    Should I type   Key: Location and enter or else?

    Should I then type value ?

    After I paste the Full URL with the access token you copied earlier
   without the <> symbol

    do I press enter or ESC to validate or else?

    How do I go back to the flow ( pressing q ?)

    Then a to allow the response through but I guess it has to happen quickly so the process does time out.  Thanking you for your assistance if possible

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  3. Anonymous
    2024-12-12T23:59:39+00:00

    Can’t tell for sure as I don’t know what authentication services that Office version uses… would need to test it on my end to check whether the hack even would work for that version. In the meantime, I highly suggest you download and install the 2019 version of Office if you can. I have shared the Microsoft Office for Mac downloads link in the Gist. Here it is if you’d like to try that alternative: https://learn.microsoft.com/en-us/officeupdates/update-history-office-for-mac (according to some other posts online, it seems like version 16.43 and earlier would work with High Sierra)

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  4. Anonymous
    2024-12-12T23:44:42+00:00

    Thank you for the updated details. I've followed them to the letter for trying to activate Office 2016, and I can only assume it likely doesn't work for this release. :(

    Are you able to look into what might be different in this case?

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  5. Anonymous
    2024-12-11T20:58:24+00:00

    Thanks for the encouragement -- it prompted me to have another go at it this morning and your tips about which mitmproxy to install helped a lot! I was able to get one that worked, with the tool showing "flows" (not sure what that means, but that's fine lol) in the terminal as you described. I was even then able to install the CA certificate, and everything looked exactly like your screenshots (except in English not Portuguese), which was reassuring and very satisfying (made it feel like my work yesterday paid off). Then I got to #8 of your steps, the part where you need to "Select one Office App that you wish to authenticate under and start the App".

    Magically (I don't know how else to explain it), this time, when I opened Microsoft Word, it did not prompt me to sign in or activate, as it has been all week since this fiasco began! I suddenly could now edit and save, re-open with my edits saved no problem. I tried Excel as well (the other Office App I use daily) and it also seems to be working a-okay.

    The only possible explanation I have is that I did another Restart last night as I was dealing with an external hard drive issue. I was at the point of saving my Desktop items to an external hard drive thinking it was final days. While I HAD done Restarts earlier this week (in fact, the restart I did last Friday forced me to enter my account details and then brought me to the blank screen), this time might have been different? I was effectively and successfully all the way to #8 of your steps when this happened, so maybe it was a combination of the restart and the correct mitmproxy download, I'm not sure. Seems like E.M.W. in an earlier post (Nov 2nd) had something like this happen.

    Anyway, my MacOS Sierra version 10.12.6 is now running my Office 2019 apps seemingly as before.Fingers crossed it lasts. I have saved all your steps in case it happens again.

    Thanks so much. This was my first time turning for computer help to a thread like this one, and I am blown away by the generosity of people like you.

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