Q: Can I uninstall the .NET Framework 3.5 if I no longer need it? A: Yes, you can uninstall the .NET Framework 3.5 if you no longer need it. However, be aware that some applications may rely on this version to function properly.

: Disconnect from any corporate VPN, disable third-party antivirus suites temporarily, and restart the Windows Update service via the services.msc panel before trying the installation again. Verifying the Installation

The safest and most reliable offline installer is already hidden inside your Windows 10 or Windows 11 installation media (ISO file or bootable USB). This method uses the Deployment Image Servicing and Management (DISM) tool built into Windows. Prerequisites

Right-click the ISO file and select . Alternatively, insert your bootable Windows installation USB drive into your PC.

: Open the mounted drive and navigate to the sources\sxs folder. Ensure the file named microsoft-windows-netfx3-ondemand-package~31bf3856ad364e35~amd64~~.cab is present.

DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs Complete Installation