Your boot hard drive is the main 'C' drive on your computer and it is where your Windows operating system and all your programs are installed.
Solid State Drives or SSD's are new types of hard drives which offer massively improved performance levels over traditional hard drives.
SSD's store data on microchips whereas traditional hard drives store data on magnetic disk platters and have to use a spindle to find and read / write data which is a slow process.
Significantly faster file access by SSDs means that booting your PC and loading programs is much quicker when compared to a PC without one, overall your computers responsiveness is massively improved.
We now use the even faster M.2 style NVMe SSD drives, these look more like a memory stick rather than a traditional drive and require a special port on your motherboard for connection.
Speed wise they offer amazing performance, whilst a read / write speed of 550MBps / 500MBps is typical on a standard SSD drive, some of our M.2 drives read at a massive 7,400MBps and can write at 6,000MBps, offering unmatched performance levels.
You can learn more about SSD and M.2 drives in our detailed blog post.
SSD's do cost a more per GB of storage than traditional drives so you can use a smaller SSD for installing your OS and programs on and then add a 2nd drive for large file storage if needed. You can also change your SSD drive size if you want to increase your C drive capacity / free space.