The reason why iis does not register .netFrameWork4.0 under Windows10 system

More and more users are now using the official version of win10, but since Win10 is a brand new operating system, the compatibility of existing software is unknown, and it will inevitably have many problems. For example, Xiaobian encountered the problem that iis did not register .netFrameWork4.0 under Win10. After some searching, Xiaobian finally found the cause of the problem!

Reason analysis:

Xiaobian just finished the win10 system, then installed VS2015, then installed sqlsever2014 and a series of development tools. Installed a lot, forgot to install iis, and later installed iis, everything seems normal, however, when Xiaobian deployed a web application on iis, the problem appeared, iis did not register .netFrameWoek4.0 , but the default registration is 2.0, but the small program needs 4.0, so re-register 4.0, but the registration is not successful.

Online search for reasons, but later found that because of the vs2015 comes with 4.5, win10 can not be installed 4.0, remember win7 is OK, then Xiaobian uninstalled the high version of .netFrameWoek, but still Can not install 4.0, and later reinstalled the system, the first install iis default registration on the 4.0, in the installation of vs2015 just fine.

Do you know if the above information is helpful to everyone? For those who have encountered the same problem, may wish to refer to it!