I can't install .NET Framework 3.5 on my Windows 11 laptop.

Yes, I followed these steps again since the same issue occurred but it didn’t help.

I tried to run driver verifier. However, now I can’t even turn on my laptop because my laptop keeps restarting and I’m getting blue screen all the time and I’m really worried.

Please redo the registry modification we did earlier. I'm reposting it below:

Open admin Command Prompt and run:

• reg.exe load HKLM\COMPONENTS c:\windows\system32\config\components

Press Enter.

Then, open Regedit.exe and go to:

HKEY_LOCAL_MACHINE\COMPONENTS\DerivedData\Components\x86_system.web_b03f5f7f11d50a3a_10.0.22621.557_none_ba07d193866dcf48

In the right pane, right-click "CF" and choose Delete.

Exit the Registry Editor.

Attempt to install .NET Framework 3.5 now.

If that doesn't help, share your latest CBS logs on OneDrive

• c:\windows\logs\cbs\                   <= Zip and upload all files in this folder.

(How-To: Share OneDrive files and folders - Microsoft Support)

Hi,

I'm receiving the same error again:

The Windows Modules Installer (TrustedInstaller) service seems to have crashed and the driver that caused the crash couldn't be determined. Maybe running Driver Verifier will help narrow down the issue.

But see if a repair installation resolves the issue and brings back .Net Framework 3.5.

See:

How to run In-place upgrade in Windows 11 - Microsoft Community:

https://answers.microsoft.com/en-us/windows/forum/all/how-to-run-in-place-upgrade-in-windows-11/4d469147-2747-4dcb-88a4-aae9273a4500

Hi,

Here is the link: 041324-9453-01.dmp