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If system files are corrupted, the Deployment Image Servicing and Management (DISM) tool can repair them. Open .

Look for a value named . Double-click it and change the Value Data to 0 . Restart your PC and try the update again.

Before jumping into the fixes, it helps to understand why this happens. Usually, it's one of three things: 0x800f0952 install

Note: Remember to change it back to 1 later if you are on a work network. Solution 5: Use the DISM Tool

If your computer is part of a corporate network, it might be looking for files on a local server (WSUS) that doesn't have them, instead of going to the official Windows Update site. Solution 1: Use the Windows Update Troubleshooter If system files are corrupted, the Deployment Image

If your PC is managed by an organization, it might be restricted from downloading features directly from Microsoft. You can temporarily bypass this via the Registry: Press , type regedit , and hit Enter.

Type the following command: DISM /Online /Cleanup-Image /RestoreHealth Double-click it and change the Value Data to 0

If you are seeing 0x800f0952 specifically while trying to install .NET Framework 3.5, try the manual toggle: