The Lenovo IdeaPad S145-15 laptop ships with Windows 10 S-Mode Operating System. Windows 10 S-Mode provides added security by only allowing APPs available ( and therefore certified by Microsoft) at the Microsoft Store. If you don't need the added security or you need to install APPs not available at the Microsoft Store, you can switch to standard Windows 10 Home 64-bit Operating System, at no additional cost. Also within all versions of Windows 10, there is Windows Defender virus protection software. Finally, there is also a 30-day trial of McAfee virus protection software installed on the computer. If you choose to keep this 3rd party virus protection software, you will need to purchase a subscription once the trial period has ended. You can also use your own choice of 3rd party virus protection software. Just be sure to turn off Windows defender and uninstall McAfee before you install your own choice of 3rd party virus protection. You may also need to switch from Windows 10 S-Mode to Windows 10 Home if your virus protection software is not available through the Microsoft Store.

That will depend on the requirements and compatibility of the specific software you will be using. We recommend you check with the specific software publisher's web site for their compatibility with Windows 10 S-Mode 64-bit operating system (Windows 10 S-Mode provides added security by only allowing APPs available ( and therefore certified by Microsoft) at the Microsoft Store. If you don't need the added security or you need to install APPs not available at the Microsoft Store, you can switch to standard Windows 10 Home 64-bit Operating System, at no additional cost.) and the minimum/recommended hardware requirements (Is a Graphics card required, the processor speed and the minimum required system RAM and the minimum available hard drive space) to run their program, then compare those requirements to this system's configuration

You should be able to get a 25-digit product key from your School IT department. Use this to activate the software already installed on the computer. If you have additional questions, we recommend you contact the Microsoft Vendor your school uses for further information.

The Lenovo IdeaCentre 510A desktop, model number 90HV001MUS ships with integrated graphics processing. It is the Intel UHD Graphics 630 version. Here is a link to more information about the capabilities of the Intel Core i3-8100 processor with Intel UHD Graphics 630: https://ark.intel.com/content/www/us/en/ark/products/126688/intel-core-i3-8100-processor-6m-cache-3-60-ghz.html