In fact, there is only one thing. Different major versions of net3.5 cannot be mixed. The sxs of each version below have been extracted. I put the sxs I extracted in the root directory of the c drive. In the administrator mode, copy the following script with powershell or cmd and flash it directly. .net framework 3.5 sp1 offline installer is available for windows versions prior to windows 10 and windows server 2016. For more information, see the .NET Framework 3.5 sp1 download page. Starting with Windows 10 and Windows Server 2016 operating systems, the only supported method of installing .NET Framework 3.5 in offline mode is to use the original installation media cab files. For more information, see microsoft.net. Sharing the latest method of installing .net framework 3.5 offline in win10 (with offline package), it is available for personal testing! Win10 Tips: The applications on your computer need to use the following windows features: .net framework 3.5 (including .net 2.0 and 3.0). Not much nonsense about the solution.
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