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The solution of Net Framework 3.5 can't be installed under win10

2020-12-08 09:54:37 myiei61027

Reprinted from :https://blog.csdn.net/changqiaozsl/article/details/50835589

Recently, the client has been upgraded to a new win10, Install the original on the client Net The program , Prompt to install net framework3.5 , The solutions to the problems encountered are listed as follows , Hope to help those who need it .

Part of the following is taken from the great gods of various forums , In this thank you !

1、 in the light of win10, Don't say anything. Start it first and then administrator Log in . As for the start-up, I don't want to talk about it here , Internal affairs Baidu , It's simple .

2、 Direct online installation  
Just click 【 Control panel 】-【 Program 】【 Procedures and functions 】-【 Turn on or off windows function 】, find NET3.5, I'm on top of this machine , Select both sub options , After confirmation, it will automatically download online to complete the installation .

3、 No response to Internet download  
Go to the official website to download the offline installation package , Don't worry about it 2.0 Also downloaded , Run the installation as an administrator .

4、 Offline package cannot be installed  
The great gods of the online forum began to appear , Looking for a win10 Installation package , No ISO Image file , Put it in X: disc (X It's up to you ). 
Right click on the start menu , choice Administrator's command mode , Otherwise, there will be other problems . Execute the following command :

dism.exe /online /enable-feature /featurename:NetFX3 /Source:X:\sources\sxs 
among X Represents the disk loaded , Then wait for the progress bar to finish .

5、 above 4 The order cannot be executed  
Ibid operation , But first run : 
dism.exe /online /add-package /packagepath:X:\sources\sxs\microsoft-windows-netfx3-ondemand-package.cab 
After running for a period of time ,DISM Error code will be returned . 
And then run : 
dism.exe /online /enable-feature /featurename:NetFX3 /Source:X:\sources\sxs\microsoft-windows-netfx3-ondemand-package.cab 
If DISM return “ operation successfully done ”, congratulations ,.NET 3.5 Successfully installed .

Will be one of the X Replace it with yours win10 Mirror letter .

Here I have basically solved my problem , To sum up, we should pay attention to : 
1、 In general, try to use administrator Identity execution operation ; 
2、 The folder name involved in the file path is in English , It's best not to contain spaces , I'm working on number one 5 It's because of the blank space (”:X:\Operation System\sxs\microsoft-windows-netfx3-ondemand-package.cab” With spaces in the middle ) Unable to execute , After removing the space succeeded .

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