...
- Open a Command Prompt as an administrator and run each of these separately:
- DismDISM /online /Disable-Feature /FeatureName:IIS-ASPNET45
- dism DISM /online /enableEnable-feature Feature /featurenameFeatureName:IIS-ASPNET45 (This can take a moment – wait until you see a progress bar appear and reach 100%)
...