windows: More robust way to ensure that version is specified

Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com>
windows: Change default installation directory

Do not include version number in the installation directory

Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com>
windows: Readme update

Fix typos, add a little bit of content.

Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com>
windows: Minor content cleanup

Signed-off-by: Anton Kolesov <Anton.Kolesov@synopsys.com>