Windows Smart App Control blocks anything and everything I do but Windows Security is a black screen.

Bobby III R 0 Reputation points
2026-10-14T03:54:19.93+00:00

I received a new laptop recently and it runs windows 11, Smart App Control has block every and ANY download I try immediately marking it as "Malware" or "unsafe" even apps downloaded straight from the Microsoft store. I cant download documents for class or any fixes google recommends. this is my last resort. every code, update or anything I've tried either didn't work or is BLOCKED. My frustration is beyond the point of being able to feel bliss until this issue is resolved. if anyone has an answer please help.

NOTE: Laptop Is DELL and Runs Windows11 also it wont update or repair issues because even though it runs windows 11 it cant repair it I guess?? I'm trying to find a solution that wont cost repair time as well.

Windows for home | Windows 11 | Performance and system failures
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  1. Francisco Montilla 31,345 Reputation points Independent Advisor
    2026-10-14T04:31:58.7533333+00:00

    Hello,

    I want to check a couple things before throwing random solutions at you.

    Did this Dell come with a pre-installed factory antivirus that you might have uninstalled or tweaked right before this started happening? Oftentimes when those trial antivirus programs expire or get uninstalled halfway they completely break the built-in Windows Security app and cause exactly this kind of black screen and phantom blocking.

    Also do you get a specific error code when Windows Update fails to run or does it just freeze up?

    Let me know so we can pin down exactly what broke in the background.

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