Python installer: "A DLL required for this install to complete could not be run"

I am on Windows 7 x64, trying to install Python 2.7.5 or 3.3.2. But I'm continuously getting an error showing:

There is a problem with this Windows installer package. A DLL required for this install to complete could not be run. Contact your package vendor.

I have freshly downloaded the installer package from Python.org several times but it is giving the same error repeatedly.

Here is a picture of the error message as it appears while installing:

Solution 1:

I think this might work:

• Go to C:/Users/XXX/AppData/Local/Temp or simply %LocalAppData%/Temp.
• Go to Properties → Security
• Change permission level for everyone to FULL ACCESS.

Solution 2:

• Run cmd.exe (run as administrator)

• Go to Python's location (example: D:\python\) by changing the directory

• Write msiexec /i filename.msi, e.g. msiexec /i python-3.4.1.amd64.msi

• Then Enter

Solution 3:

I had extraneous Python environment variables from previous installations. You should delete any Python environment variables and retry.