Sometimes it\'s useful to rebuild an entire site and force bower to reinstall new versions of all the packages in bower.json.
However, there doesn\'t seem to be any way
Adapting Jumar Polanco's answer to use it in Powershell, it is possible to programmatically uninstall bower components in the following way:
In the Powershell interface, navigate to the location where bower.json and the bower_components folder is located. Usually is the root app folder.
Then you can run:
foreach($package in ls bower_components){bower uninstall $package}
Depending on what the packages dependencies are, it may be required to pay extra attention to the process, as some prompts which require extra input (Y/n) to continue the process may arise (such as dependency conflicts).