Based on your key phrase 'Calibre 7.1.0 instal the new for windows', I understand that you are looking for information on how to install Calibre version 7.1.0 on a Windows operating system.

Here's what I found:

* According to the provided text, you can download the latest release of the DeDRM plugin (DeDRMplugin7.0.3.zip) and follow these steps:

1. Install Calibre 7.1.0 for Windows.

2. Choose the downloaded zip file (DeDRMplugin7.0.3.zip) as the installation source.

3. Restart Calibre, and the plugin will appear in the list of plugins.

Additionally, here are some general features and functionalities of Calibre:

* Calibre is an e-book manager that can view, convert, and catalog e-books in various formats (including major formats).

* It can connect to many e-book reader devices.

* It can fetch metadata for books from the internet.

* It can also download newspapers and convert them into e-book format.

If you would like more information on how to use Calibre or have specific questions, please feel free to ask!

As a side note, there is also a portable version of Calibre available (Calibre Portable) which allows you to run the application without installing it.