 In this video, you will learn how to install the PCRusterTools plugin for Windows using the OSGO 4W installer. Let's first go to plugins, manage and install plugins, and in the plugins manager, search for PCRusterTools. The description tells you that this will add around 100 map algebra tools to the processing toolbox. Click on home page to find the page of the documentation. You can see the instructions on how to install the PCRusterTools plugin. And in this video, we are going to use the OSGO 4W installer for Windows. You can also install it on Windows in the conda environment that also works for Mac and Linux, which will be discussed in another video. If you want to do a fresh install of QGIS with all these tools, you can go to qgis.org and click download now. And then you need to use the newest installers. The old installers with the old dependencies PCRuster is not included. So you download the OSGO 4W network installer. If your existing installation had already been installed with this new OSGO 4W installer, you can see at the end of this video how to update that with PCRuster by running setup. In the installer, choose advanced install. Install from internet. You can keep the defaults, choose a repository and then you can see in this screen the different versions of the desktop software that are available. And if you want the long term release and the latest release, you can follow these steps. You click here on QGIS Desktop and then it will install 3.20.3, which is the newest release. Then I was recording this video and then there is QGIS LTR, which is 3.16.11, it's a long term release. If you want Saga, you select here Saga and if you want PCRuster to be installed, which is necessary for the plugin, you search for PCRuster and you find it under Lips and then you check that it has to be installed. If you also want grass, you can find it under the desktop and you need to install it and under the lips and you install there the plugin and that's both for the newest version and for the LTR. And then you do next, accept all the terms and then it starts downloading and installing. That will take some time. Here we have done a fast forward to save some time. If you already had an installation of QGIS, then you can look for the setup that corresponds with your installation. Make sure that you use a QGIS version with the new dependencies, so with the old installers this will not work. If you're not sure which setup corresponds to the version you want to update, you can also search for the QGIS version on your computer and then you choose open file location and then you find the corresponding setup and that is for the rest the same procedure as you've done for installing it from scratch but now you can update the versions. After you've installed PC Roster you can install the plugin and then you can open the processing toolbox to find all the tools and there we see that we have besides the QGIS tools, GDAL, Grass and Saga, so the PC Roster tools. If we expand the toolbox then you find different categories and it's very important before you start doing your analysis to convert from a geotift for example to the PC Roster format and PC Roster is strict on the different output data types so that's what you need to do first before you can use the tools. You can also use PC Roster from the Python console of QGIS and simply import the package and if that doesn't give any error it means it works. There are other videos on YouTube channel about using these PC Roster tools.