So the GF needed a new laptop and so we buy a nice Huawei Matebook. A while in, I notice the 1tb drive, besides EFI and recovery partitions, has an 80gb C: "Windows" partition and a "Data" partition.

Increasing the size of the System Reserved Partition without third-party software requires the execution of the required commands in the Command Prompt. Therefore, this method is only for advanced ...

Windows isn’t the only operating system you can run on your PC. Provided you have space on your local drive, you can use multiple partitions to run different Linux distros, create storage partitions, ...