Even with an offline installer, things can go wrong. Here are the most common errors on Windows 10 64-bit and how to fix them.
Check the box for . Click OK .
If you are uncomfortable with the command line, try these offline-friendly alternatives. Net Framework 3.5 Offline Installer Windows 10 64 Bit
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All /LimitAccess /Source:D:\sources\sxs
For Windows 10 64-bit, the is not just a backup plan—it is the recommended solution for system administrators and advanced users. Even with an offline installer, things can go wrong
Enable-WindowsOptionalFeature -Online -FeatureName "NetFx3" -Source "D:\sources\sxs" -LimitAccess Microsoft Learn Important Considerations Version Match
Visit the official Microsoft website or a trusted source to download the .NET Framework 3.5 offline installer for Windows 10 64-bit. The file size is approximately 231 MB. Click OK
Once the download is complete, run the offline installer (dotnetfx35setup.exe) as an administrator.