How to solve. net4.0 installation failure in windows 7

The installation of. net4.0 in win7 failed today. I will share with you my solutions. If you need to learn more, please refer.

Win7. net4.0 Installation failed.






Procedure:
The main cause is that the temporary file for Windows update is damaged. We recommend that you rename the folder.
1. Start -- run -- cmd -- type net stop WuAuServ and press enter to stop the windows update Service );
2. Start -- run -- type % windir % and press enter to open the system directory );
3. Rename the SoftwareDistribution folder to SDold;
4. start -- run -- cmd -- type net start WuAuServ and press Enter;
5. You can install. net normally.