It reported some faulty memory to me yesterday.  Today the memory arrived.  I went to run it (to see if it tells me which stick of memory to replace!) and it updated.  It didn't come up with an error when updating but now won't run.  It just says it will take a while then says it has had a problem and to reboot and try again later.

I then made the mistake (?) of uninstalling, and now it won't reinstall - "We were unable to complete the installation.  Please reboot your PC and try again".

So similar but not identical.

This didn't work for me unfortunately. I couldn't find any event viewer logs that reported Dell.TechHub.exe or Dot.Net. All I found were vague errors relating to the failure of the installation. 

Did you look in Windows Logs - Applications only or some other log in Event viewer?

My Inspiron laptop managed to successfully update SupportAssist. Both machines are on the same .Net runtime version, which is 5.0.17. It could possibly be a different issue not regarding .Net.

Something I haven't seen as yet showed up today. Dell.TechHub under Processes.  I also see Dell.DCF.UA.Bradbury.API.SubAgent.exe and Dell User Session Agent under Processes (around 9 processes in total for Dell that I can see) .  I received an alert from McAfee that Dell.TechHub wanted access to my system but since I can't find anything about it I blocked it.

My software program shows that Dell Support Assist did update today to version 3.11.4.29.  I can't find anything here on the net regarding Dell.TechHub or the SubAgent.

I tried opening Dell Support Assist but it says it's taking longer than expected and to reboot my system.  I don't know if this Dell.TechHub requires access in order to open the program but I'm not in a position to be able to reboot my system at this time.

SupportAssist (SA) has always had problems and is often confused with Dell update because they overlap so much (I still don't know the difference). This latest 'installation failed' SA glitch  and it's probably more trouble than its worth.

I had this same exact issue yesterday (6/25/2022). I also tried uninstalling, but re-installation failed every time. Dell, please help. Thanks.

Hi @PatSSSS 

I'm pretty sure Dell command/update and Alienware update are standalone applications identical to SA's "drivers and downloads" operation. When you run Dell update, you are essentially running SupportAssists "get drivers and downloads" process. 

If you were to go into control panel, then programs and features, you'd find an application called "dell update for windows" or "dell update for windows universal". I could be wrong here but I believe this is what SA and Dell Update use to check for drivers. This is NOT the actual dell update app(the one you can open and run). If you were to go to settings - apps, and search "dell update" or "Alienware update" (if you have an Alienware machine) you'll find two dell update applications. The one that you can open and run, and the one that I mentioned above.

All,

SA uninstall/reinstall instructions