DISM cannot locate the .cab file or the path contains spaces/punctuation. Fix: Ensure the path is simple (e.g., C:\sxs ). Use Dir command to verify the CAB exists.
Enable from Windows installation media (recommended for reliability)
If you double-click dotnetfx35.exe without switches, it will still ask for online download. – use DISM or the command-line trick instead.
The same method applies to Windows 11 64-bit. Use a Windows 11 ISO’s sxs folder.
Replace D: with your actual media drive letter.
Right-click the file and select Mount . This will assign it a virtual drive letter (e.g., D: ).
: Press Enter . Once the progress reaches 100%, the feature is enabled. Install .NET Framework 3.5 on Windows 10 - Microsoft Learn
DISM cannot locate the .cab file or the path contains spaces/punctuation. Fix: Ensure the path is simple (e.g., C:\sxs ). Use Dir command to verify the CAB exists.
Enable from Windows installation media (recommended for reliability)
If you double-click dotnetfx35.exe without switches, it will still ask for online download. – use DISM or the command-line trick instead.
The same method applies to Windows 11 64-bit. Use a Windows 11 ISO’s sxs folder.
Replace D: with your actual media drive letter.
Right-click the file and select Mount . This will assign it a virtual drive letter (e.g., D: ).
: Press Enter . Once the progress reaches 100%, the feature is enabled. Install .NET Framework 3.5 on Windows 10 - Microsoft Learn