Can't pip install Tensorflow 'msvcp140_1.dll' missing

You can find msvcp140.dll in your %windows%/System32 folder, once you installed VC++ DIST for VS 2015, for msvcp140_1.dll you need to goto this page

https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

and in the section :Visual Studio 2015, 2017 and 2019, pick the correct package with the arch of your PC.