I have the same problem. I just purchased this Inspiron desktop and although it tells me to run SupportAssist for updates, it will not load :(

Yes, mine isn't working either. Everyday I get a notification to update my drivers, software, etc. but every time I open SupportAssist, it just hangs. I recently updated my software (also prompted by Windows). 

Mine immediately goes into "not responding" and sits there until I force close it.

@AXEL314 I uninstalled SupportAssist and reinstalled it from the same download site, but it will not launch. Nothing happens after clicking on SupportAssist from the desktop or programs list.

@Pinkal K Did this. It doesn't work, because SupportAssist won't launch.

Please remove Dell update and Dell update plug in if found 

YES  All I get after launching Dell Support is 'NOT RESPONDING' Greyed out & sending to Microsoft. For 6 days now. It was OK before the latest MS update KB4284835

Running an Inspiron 13 7359 on Windows 10. Had to uninstall SA and now will not reinstall - same error as others re the installation file having 'no internet connection'- which of course is not the case.

Has anyone had a reply from Dell ?

Is Dell listening ?

Wenzel

Same problem. Keep getting messages from Dell to run Support Assist on my new XPS 13. When I do, it crashes every time (Not Responding). Tried running it from Dell on-line support and it fails again during tests saying "a problem was detected, try again." 

Having the same problem.

I have uninstalled and reinstalled 3 times now and it still doesn't work.

I just get a message that "Support Assist has stopped responding" and that a report will be sent to Microsoft.

I have 4 Dell computers and the problem is on all of them.

Dell - please fix this soon!

Support Assist keeps freezing up, but a solution worked for me that hopefully will continue to work.  Using Windows 10 Pro.  Went into programs and removed, but that alone did not do it since when trying to download an installer it kept crashing and not installing.  So went a bit further into Windows/temp and removed the support assist folder located there.  Was able to reinstall the newer file and it's now working great.  So it seems that a complete removal is necessary in order to get the new one working.

I have a Inspiron 5675 gaming desktop and Support Assist crashes every time I open it and just says not responding. I get a pcdlauncher.exe system error. 

This also worked for me.  Windows 10 pro on a Dell optiplex 7050

Uninstall program

removed windows\temp\*** agent

Reinstalled and Bingo :)

Thanks for the tip