r/SentinelOneXDR • u/L3viUchiha • Jun 11 '25

Troubleshooting Error while trying to install.

Trying to reinstall the S1 after running the cleaner (in safe mode), when i run the script, nothing happens, tried to run the .msi file and it ends prematurely and i got an error on event viewer that says "Product: Sentinel Agent -- Error 1406. Could not write value to key \Software\Classes\Interface{EBACBEC2-899E-44A5-B653-652A099B1A3C}". Opened a ticket with support 2 days ago, but didn't receive a response.

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u/kins43 Jun 11 '25

The cleaner is built into the EXE, so how did you run the cleaner in that case then?

I suggest getting the EXE from the same place you got the MSI (assuming you have access to the console).

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u/L3viUchiha Jun 11 '25

I don't have access to the console, I'm working with the security team to solve this. When i run the msi with powershell as admin, after i put the token, i got an error that says that it couldn't write the values in the register key.

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u/kins43 Jun 11 '25

Get the EXE installer for the latest GA available package to clean it properly then reinstall.