Install Error 1073741795 on 2 different computers.

I found and also followed that article already. I assume you didn't read the thread, you just found it because it was on Microsoft. Noting that every proceeding comment after the suggestions to fix were negative.

Last Comment:

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Hello Stéphane,

No.... no solutions were found on my side. Anything on your side?

I follow this thread where it says dropbox engineers are working on this but for now no solutions were given.

https://www.dropboxforum.com/t5/Dropbox-installs-integrations/Installation-Failed-Error-Code-1073741795/td-p/563661/page/11

Good luck

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Which leads to a 3 year old forum that has:

Our engineers have put out a new Beta Build: 150.3.4929, which fixes the 'Installation failure: Error code 1073741795'. You can find details about the fix, and how to install it, here. 

Which has:

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Features in this update:

Right-clicking on a Dropbox folder will now launch the selected folder in your web browser with an interactive menu to organize content.
A new entry point from Backup Setting to the Backup Plan modal.
An error will now prompt when you are offline during external drive backup setup.

Fixes in this update:

Crashes on macOS 12.3 and above continue to be fixed.
Issues causing the Dropbox desktop app to restart unexpectedly in the taskbar have been fixed.
Information on sharing folders with a link has been clarified and now has a Learn more link that directs to shared folder FAQs.
Prompt that reads “PC” during backup user onboarding has been corrected for Mac users.
Issues causing syncing to stick for users backing up FAT32 or exFAT drives on macOS have been corrected.
Installation on Windows failing due to “Error 1073741795 (illegal instruction)” has been fixed.

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Which at the end, nobody responded to the plea for help:

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I haven't resolved this issue, because I keep getting the same error message  (error code 1073741795) and I can't install Dropbox on my surface.

Someone helps me, please

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The "Full Installer" mentioned = Offline Installer.

I disabled all that stuff and no VPN. Keep in mind that the 3rd PC that works had these things running, so its clearly not looking to be AV/Firewall and there is no VPN Installed.

I also tried to get Dropbox from the Microsoft Store on one, and it installed, but also wont load.

The Event Viewer for the Offline/Full Installer has this:

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Windows cannot access the file  for one of the following reasons: there is a problem with the network connection, the disk that the file is stored on, or the storage drivers installed on this computer; or the disk is missing. Windows closed the programme Dropbox because of this error.

Programme: Dropbox
File:

The error value is listed in the Additional Data section.
User Action
1. Open the file again. This situation might be a temporary problem that corrects itself when the programme runs again.
2. If the file still cannot be accessed and
- It is on the network, your network administrator should verify that there is not a problem with the network and that the server can be contacted.
- It is on a removable disk, for example, a floppy disk or CD-ROM, verify that the disk is fully inserted into the computer.
3. Check and repair the file system by running CHKDSK. To run CHKDSK, click Start, click Run, type CMD, and then click OK. At the command prompt, type CHKDSK /F, and then press ENTER.
4. If the problem persists, restore the file from a back-up copy.
5. Determine whether other files on the same disk can be opened. If not, the disk might be damaged. If it is a hard disk, contact your administrator or computer hardware vendor for further assistance.

Additional Data
Error value: 0x0
Disk type: 0x0

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They both have the same error. The HP is 6 months old, and 2 computers happen to fail at the same time does not suggest hardware or even Windows corruption at the same time, nor drivers as they won't suddenly have the same sort of driver error. They are both clean of virus/malware, and the 3rd computer would have been affected if you want to chalk it up to that.

Also, again, the 3rd PC was purchased and installed at the same time as one of the problem ones, yet has no issues, so it would be hit with the same issues

Then the next error proceeded after that:

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Faulting application name: Dropbox.exe, version: 212.4.5767.0, time stamp: 0x4af70747
Faulting module name: dropbox_core.dll, version: 0.0.0.0, time stamp: 0x6dd5ecf6
Exception code: 0xc000001d
Fault offset: 0x00000000005e1a44
Faulting process id: 0x0x147C
Faulting application start time: 0x0x1DB40BEF4056383
Faulting application path: C:\Program Files (x86)\Dropbox\Client_212.4.5767\Dropbox.exe
Faulting module path: C:\Program Files (x86)\Dropbox\Client_212.4.5767\212.4.5767\dropbox_core.dll
Report Id: 1fc58b17-2020-4712-92c6-9db04270538f
Faulting package full name: 
Faulting package-relative application ID: 

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Again, both have the exact same error.

Another solution would be to try an older Dropbox, but anything found to do so, there is a response that dropbox won't load properly and will try to update to latest, so if it was a later versions issue in the installer, it can't be dodged.