I met this error before.
I have tried to uninstall all dell related apps and then install MyDell app.
and it works!

Thank you for your reply. I've tried that, but didn't solve the problem unfortunately.

in my new XPS17 the same issue. MyDell wasn't working anymore. Uninstall-Reinstall has this Error 2762 as result. 

Windows 11, up to date, unable to reinstall MyDell. Even rebooted into safe mode to try and improve the situation. I'll try uninstalling ALL Del related, but I have a feeling it's a bug.

I found a solution but it's more involved. You need a USB drive of at least 8 GB, and maybe a USB WiFi device.

1. Download Windows 11 here under the "Create Windows 11 Installation Media" option:
   The link is https://www.microsoft.com/software-download/windows11
2. Install Windows 11 onto the USB drive (WARNING data will be erased from the USB drive).
3. If your laptop has Intel Rapid Storage Technology, download the driver for your laptop/desktop. Extract the folder onto the USB drive (DO NOT install)
4. Back up ALL your important data.
5. If you have more than 1 hard drive, make sure your Bitlocker keys are backed up somewhere, as you'll need them for any additional drive you have.
6. Reboot your DELL device,with the USB drive still plugged. Remove ALL other USB drives to avoid confusion later on.
7. When the logo appears, press F12 (you may need to try several times). This will launch the "One-time" boot menu.
8. Select the USB drive, making sure you select the UEFI option. For example, UEFI: Kingston Data Travel 32T 8GB.
9. This will launch Windows 11 setup, but NOT any DELL recovery environment.
10. Go through the steps until you reach the "select hard drive" step.
11. Here it will be blank if you have modern Intel processors. See DELL KB here: https://www.dell.com/support/kbdoc/en-us/000188116/intel-11th-generation-processors-no-drives-can-be-found-during-windows-10-installation
12. The driver to select is Select [Intel RST VMD Controller].
13. When you see the hard drives, BE CAREFUL as you will now delete ALL partitions from the main hard drive (if you're unsure ask for help!).
14. Go on to select and delete each partition from the disk on which you want to install Windows 11.
15. Once your disk is empty, proceed to install Windows 11.
16. You may be stuck at the login information, as Microsoft will force you to connect to the internet and use a Microsoft Account.
17. Here I needed to plug in a WiFi USB adapter to connect to the internet and log into my Microsoft Account.
18. Once I managed to connect to the internet (this step may be an issue for those without an Ethernet connection or WiFi not being detected by the Windows 11 installation), I finished my clean and fresh install and was finally brought back to the Desktop.
19. You may need to provide the Bitlocker key to unlock any additional drive you have internally/that is encrypted.
20. Now, go to DELL, install and run (in this order)
    1. DELL Update
    2. MyDELL
    3. SupportAssist
21. Windows 11 will also begin installing updates in the background so your screen may go black from time to time and you may need to reboot several times.
22. Basically, MyDELL was installed without issues on the EXACT same laptop with the same version of Windows. The difference is that I did not use DELL's script to install from DELL Recovery which has a small bug but pesky enough that it interferes with the installation.

I hope this can help.

Cheers,

John

I also got here because I could not install MyDell with error 2762 as well. I was able to install it and I am documenting it for your information.

Symptoms:
In my example, the symptom was that the latest version of MyDell (3.0.412.2, A00) could not be installed after a clean install of Windows 11 Pro on my Inspiron 5330.
To be more precise, after a failed installation, and success repair, installation was complete and MyDell was listed in the installed applications. But MyDell was not found and could not be executed when accessing all applications with the windows key.

details of what i did:
I uninstalled MyDell (latest version) and reinstalled the old version (3.0.382.1, A00), leaving other software such as dell update installed.
The error 2762 did not occur and the installation of MyDell was successful.

Remarks:
I have not been able to isolate the cause of the problem, but suspended bitlocker protection during installation and uninstallation.
The following dell-related programs were remained during MyDell installation and uninstallation.
Dell Optimizer Service
Dell Pair
Dell Support Assist
Dell Support Assist OS Recovery Plugin for Dell update
Dell Support Assist Remediation
Dell Update for windows Universal

Hopefully someone with more knowledge will understand the situation and find the right way. But I also vote for a bug.

Yes I wasted time twice using the DELL recovery and then resorted to a clean install without the DELL image. But I would prefer the convenient restore / reset function from DELL.

They recently changed MyDELL, which is now standalone (not from the Microsoft Store). I was unable to even try and install the one from the store on Windows 11. Maybe they'll improve this in the future (release A00 is the first I guess).

Forgot to mention: I was using the latest version of all apps and my laptop is Vostro 3520 (equivalent to Inspiron 3520 apparently)

I can confirm this solution of installing the previous build works.