However, you might find Dell SupportAssist installation failed at times.
Some of you might fail to reinstall Dell SupportAssist and receive the warning pop-up below:
Installation failed.
We were unable to complete the installation.

kindly reboot your PC and have another go.
Luckily, the solutions below will help you to fix the Dell SupportAssit installation failed error for you.
it’s possible for you to try them one by one until your problem gets fixed.

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How to Fix Dell SupportAssist Installation Failed?
If yes, uninstall it and then reboot your machine.
Fix 2: Install Microsoft .NET Runtime 6.0.9
Dell SupportAssist requires .NET Runtime 6.0.9.
Fix 3: Remove All Other Programs Related to Dell
Step 1.
When we uninstall a program or utility, some traces are left behind in the systems registry.
In consequence, you should follow the following steps to remove these traces:
Step 1.
Go toWindows options>Apps>Apps & features.
Now, you’ve got the option to see all the installed programs on your machine.
Click onDell SupportAssist, hitUninstall, and then follow the on-screen wizard to complete the process.
After uninstalling it, runCommand Promptwith administrative rights and execute the following command one by one.
SC DELETE SupportAssistAgent
SC DELETE DDVDataCollector
SC DELETE DDVRulesProcessor
SC DELETE DDVCollectorSvcApi
Step 4.
Heres how to create a new user account:
Step 1.
Typenetplwizin theRundialog and hitEnterto openUser Account.
HitAdd>Sign in without a Microsoft account>Local Account.
Step 3. slide in your user name, password, password hint and hitNextto continue.
After creating the profile, select it, and tap onProperties.
In theGroup membershiptab, tickAdministratorand hitOKto save the changes.
Final Words
Thats all solutions for Dell SupportAssist installation failure.
Hope it’s possible for you to succeed in installing this program to protect your setup again.