If there is no more space on a partition
How to merge two partitions in Windows 7/8/8.1/10?
A common complaint from friends and family members is that their computers with stock system configurations from Dell, HP, etc. often make the C partition too small and they have to find ways to extend the partition to get more free space.
Unfortunately, when you search for merging partitions, most solutions will recommend you download third-party software to manage changes to Windows partitions. With all the choices and options, it quickly becomes a daunting task for the average PC user. There are good programs out there and they will get the job done safely without requiring much technical knowledge, but they typically cost somewhere between $30 and $60.
In this article, I will try to show you a simpler and easier way to merge two partitions without any third-party software. It is not as robust as using a third-party and in some situations you will need to use a separate program, but it will get the job done for most people.