user-guide: make note on Python for Windows in contrib and...

correction in remote cmd ref

content/docs/command-reference/remote/index.md

@@ -43,9 +43,9 @@ more details.
 > include them all. The command should look like this: `pip install "dvc[s3]"`.
 > (This example installs `boto3` library along with DVC to support S3 storage.)
 
-Using DVC with a remote data storage is optional. By default, DVC is configured
-to use a local data storage only (usually the `.dvc/cache` directory). This
-enables basic DVC usage scenarios out of the box.
+Using DVC with remote storage is optional. Most DVC commands use the local cache
+(usually in dir `.dvc/cache`) as data storage only. This enables basic DVC usage
+scenarios out of the box.
 
 [Add](/doc/command-reference/remote/add),
 [default](/doc/command-reference/remote/default),

content/docs/user-guide/contributing/core.md

@@ -44,7 +44,10 @@ $ git clone [email protected]:<username>/dvc.git
 
 Make sure that you have Python 3 installed. Version 3.6 or higher is required to
 run style checkers on pre-commit. On MacOS, we recommend using `brew` to install
-Python.
+Python. For Windows, we recommend an official
+[python.org release](https://www.python.org/downloads/windows/) (not from the
+Microsoft Store), and to remove the default
+[app execution aliases](https://superuser.com/a/1461471/290071).
 
 Install DVC in editable mode with `pip install -e ".[all,tests]"`. But before we
 do that, we **strongly** recommend creating a