Access denied error

This is caused by a lock file that sometimes gets stuck and isn’t removed when it should be.

In Anaconda Prompt or a terminal, run:

conda update conda
conda update anaconda-navigator
conda update navigator-updater
anaconda-navigator --reset

The last command is the key to fixing the issue as it removes the lock file causing the problem.

RStudio fails to install in Navigator 1.6.2 if special characters are in install path

This is a known issue in Navigator 1.6.2 on Windows 7 64-bit.