win7.net4.0 installation was unsuccessful (as shown below).
steps:
The main reason is temporary files Windows update of damage, it is recommended to rename the folder. 1. Start ——run——cmd——type net stop WuAuServ Enter (stop windows update service); 2.Start ——run——type %windir% enter (turn on system Directory); 3. Rename the SoftwareDistribution folder to SDold; 4. Start ——Run ——cmd——type net start WuAuServ Enter; 5.You can install .net normally.
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