"could not write updated path to HKLM." when reinstalling python(x,y)

[GoogleCodeExporter]

If relevant, please answer to the following questions:
1. What version of Python(x,y) have you installed?

2.7.6.1

2. Which components have you installed (Python(x,y) installer:
componentpage):

Full (tried with recommended too but the same error occurs)


3. Have you selected the option "Customize installation directories"?
No


5. Where did you install Python(x,y) itself?

default path


6. Have you installed Python(x,y):

All users

7. What is your operating system?

Windows 7


8. Is the operating system 64 bit?

Yes


9. When you installed Python(x,y), were you logged in as :

administrator of the machine

10. If you are using Windows Vista/7, have you installed Python(x,y):

by right-clicking on the installer and selecting "Run as an
administrator"

11. Regarding installed software on your machine, how did you clean your
machine before installing Python(x,y)  (multiple answers are possible):

you cleaned the Windows registry by removing all Python-related keys

cleaned the environment variables by removing all deprecated
entries

What steps will reproduce the problem?
1.
2.
3.

What is the expected output? What do you see instead?

Python(x,y) was previously installed on my computer but I had to reinstall it 
due to some reasons. The problem occurs when I try to install it again. I get a 
message at the beginning of the installation where it says "could not write 
updated path to HKLM." and then I abort the installation.

Original issue reported on code.google.com by mat09...@student.lu.se on 22 Oct 2014 at 7:04