This article will tell you what 4K alignment is and show you how to achieve 4K alignment.

And data are written into this disk according to the rule of 4K sector.

So, if there is 4K alignment, there is also 4K misalignment.

4K alignment

Obviously, this has great impact not only on writing speed but also on reading speed.

In the case of 4K misalignment, we must modify it to 4K alignment.

1.Definition

4K misalignment is associated with a partitioning technology, calledAdvanced Format.

Advanced Format is a name for new data structure format adopted by IDEMA.

With the development of the times, hard disk capacity is continuously to be expanded.

This makes the previous definition of 512 bytes per sector no longer reasonable.

So, 512 bytes per sector is changed to 4096 bytes per sector.

This is now called 4K sector.

Each sector of traditional disk is fixed for 512 bytes.

Then, there will be the case in which 4K sector misaligns with 4K cluster.

So, we must use the way of 4K alignment to align disk simulating sector to 4K sector.

4096 bytes are 4K.

This is also called 1M alignment.

And it meets 4K alignment.

As long as the value is the integer times of 4096B, it is 4K Aligned.

It will determine the number of sectors in a cluster for quick storage.

Then we can calculate the size of the pre-63 sectors: 512B * 63 = 32256B.

This will reduce reading and writing speed and shorten hard disk service life.

This avoids excessive reading and writing operations while improves reading and writing speed and lengthens service life.

So, users dont need to do any setup.

If you still use XP system, then you will depend on third party tool to achieve 4K alignment.

Here, we suggest using the professional partition manager MiniTool Partition Wizard and itsAlignfunction.