PSE 2021 Installation stops dead, no error

[Pete-K39]

Apple MacbookPro, 2015 vintage, MacOS 11.4, 16GB RAM.

Installation dtops dead at 91%; no error message. Activity monitor shows two PSE2021 apps executing, one is marked unresponsive.

I had the Monitor kill the unresponsive module. The other gave "unknown error" message and offered a window "Quit." Clicking on that initiated activity that is going on now for half hour. What gives?

I was hoping to re-statrt one more time before asking for help but now I'm at a loss. The last time I had installation problem like this was on a Windoz

Any help would be appreciated and TIA.

Pete 

[Nancy OShea]

Please ensure your computer meets or exceeds the minimum system requirements to run Creative Cloud + OS + all other apps you use. Check each one.
- https://helpx.adobe.com/creative-cloud/system-requirements.html

Pay particular attention to Photoshop's new GPU requirements. See links below.
- https://helpx.adobe.com/photoshop/system-requirements.html
- https://helpx.adobe.com/photoshop/kb/photoshop-cc-gpu-card-faq.html

[Pete-K39 · Accepted solution]

Thank you for your help.

Actually I was able to resolve the problem shortly after asking for help by deleting all new modules; downloaded a new copy of the installer and restarted the installation. Everything went smooth this time and I had Photoshop Elements up and running in twenty minutes or less.

Thanks for your help once again.

Pete