If the error persists, temporarily disable your antivirus or web filter (e.g., Sophos, Windows Defender) during the installation process to ensure it isn't blocking the download of the .msi files.
Open your endpoint protection software or panel.
If the search locates a key inside the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ subkey, look at the right pane to verify it belongs to the corrupted SDK.
If your Windows Installer cache is widely corrupted, rebuilding it might be required.
: Occasionally, partial or corrupted downloads in the temporary folders cause this error. Clear your %TEMP% directory before restarting the setup. Specific Workarounds for IT Pros
If the error persists, temporarily disable your antivirus or web filter (e.g., Sophos, Windows Defender) during the installation process to ensure it isn't blocking the download of the .msi files.
Open your endpoint protection software or panel. setup cannot locate toolkit documentation-x86-en-us.msi
If the search locates a key inside the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\ subkey, look at the right pane to verify it belongs to the corrupted SDK. If the error persists, temporarily disable your antivirus
If your Windows Installer cache is widely corrupted, rebuilding it might be required. If the error persists
: Occasionally, partial or corrupted downloads in the temporary folders cause this error. Clear your %TEMP% directory before restarting the setup. Specific Workarounds for IT Pros
