0x80070643 error while installing Python 3.6


I'm actually using Python for an audio steganography project but I have some troubles. I searched this error code on the forum, but I found things about SQL installations and not Python.

I'm trying to re-install Python 3.6.5 after an uninstall, because of a bug with pip.

I installed Python 2.7, Python 3.6.5, Python with VS 2017, before uninstall it because it wasn't working.

However, when I'm runing the installer as an administrator, hit "customize installation", tick everything excpet "balblalblabal (this requires VS 2015 or later)", and click on "install", it tells me that : capture 1 capture 2.

I realy need Python to work and I'm now stuck ...

If anybody here could help me, it would be nice ! Thanks all, maleik.

PS : I have the log for you :*

The log link

asked on Stack Overflow Dec 5, 2018 by maleik • edited Dec 5, 2018 by Christian K├Ânig

1 Answer


I found this in the log file which you have attached. Try cleaning the registry with CC cleaner and give it a try. If it still doesn't work, try installing python with web installer Python Web Installed 3.6.5.

[3DA0:2968][2018-12-05T20:46:18]e000: Error 0x80070643: Failed to install MSI package.
[3DA0:2968][2018-12-05T20:46:18]e000: Error 0x80070643: Failed to execute MSI package.
[2610:03A4][2018-12-05T20:46:18]e000: Error 0x80070643: Failed to configure per-machine MSI package.
[2610:03A4][2018-12-05T20:46:18]i319: Applied execute package: core_AllUsers, result: 0x80070643, restart: None
[2610:03A4][2018-12-05T20:46:18]e000: Error 0x80070643: Failed to execute MSI package
answered on Stack Overflow Dec 5, 2018 by Sainath

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