This is known issue can be caused due to Dozens of different reason. No point wasting time in finding the root cause.  Simple uninstall and reinstall of Support should do it.  If not fixed  Follow this Guide from start to end do not miss any steps  You may find that a few thing I am recommending to delete are already deleted from your computer so skip those steps.   1 Use Microsoft's Installer :  This step is crucial as Microsoft's uninstaller disables the services as well. Choose SupportAssist and uninstall, Uninstall Dell updates by running the the uninstaller again. If Support Assist doesn't show in List ignore this step.  Reboot (important)  C:/ Program Data/ PCDR  C:/ Program Data/Supportassist  C:/ Program Data/Dell/Dell data volt  C:/ Program Files/ Dell/Supportassist  C:/ Program Files/ Dell/ Dell data Volt  C:/ windows/Temp (everything inside the folder  Remove these Registries  Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services key. Delete Dell hardware service, Delete Dell client management service, Delete Dell updates.  Reboot  install SupportAssist  If still under the purchased warranty, click the "Get Help Now" icon on the right to start a live chat session.     
Hello, I hope everyone in the community is well! As I state in the title, SupportAssist has stopped working since 2 weeks ago. I browsed through the community for past discussions but I did not find a similar situation to mine. I have an Inspiron 24 - 5400 All in one. Bought it last March, simple usage like youtube, office, web browsing. I try to keep it up to date. When I click the application to launch it is loading for about 4-5 minutes and then shows the following message: We ran into an unexpected issue with SupportAssist. Restart your PC and try again later. Version: 3.10.0 There are no pending updated regarding Windows. The application Dell Update works normally and there are no pending updates there either. I have also checked for Viruses or corrupted files using Windows Security. I read several other sites about steps I could also take like renaming files or uninstalling programs but I did not try anything until I get some advice first.   Thank you in advance
SupportAssist is not working