In addition, installing Windows on the never used hard disk may also generate these partitions.

However, inDisk ManagementI found the disk is already littered with partitions!

1000 MB Healthy (Recovery partition) 100% free.

strange partitions on laptops in Disk Management

Any thoughts on this, c’mon?PC Advisor

Is your laptop configured with such weird partitions?

Now open Windows Disk Management to check it.

Then, lets unveil these partitions.

MiniTool Partition Wizard main interface

As to Microsoft Reserved Partition, it must be created when disk-partitioning information is first written to the drive.

If the manufacturer partitions the disk, the manufacturer creates it.

If Windows partitions the disk during setup, Windows creates it.

explore Windows recovery partition

Well, what contents do these partitions store?

If you are interested in this topic, keep reading.

What Contents Do These Weird Partitions on LaptopsSave

Here we take Lenovo laptop harddisk partitionfor example.

explore EFI system partition

Note that partitions for other brands of laptops should be similar, so do contents saved in those partitions.

After that, all files saved in the selected partition will be shown by path.

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1.

explore system reserved partition

Windows Recovery Partition

On the following laptop, this partition is 499MB.

Select this partition and choose theexplore Partitionfunction from the left side.

That is to say it is related to System Recovery.

delete system partition

This partition is also related to system recovery.

1000MB OEM Partition

On my computer, it is the 1000MB LRS_ESP partition.

For other brands of laptops, this partition may also contain diagnostics tools.

delete recovery partition

Wikipedia gives an exact explanation:

GPTformatted disks and the UEFI partition specification do not allow hidden sectors.

And it is formatted withOtherfile system.

Now, you would have a basic understanding of strange partitions on laptops.

partition disk before Windows installation

Can You Delete Strange Partitions on Laptops?

Without this partition, Windows will be unbootable unless we do some fix.

However, if you delete these partitions by mistake, see the postWindows Cant boot after Deleting System Partition?

create a partition before installing Windows

Fix It!to get solutions.

Well, how to delete unnecessary partitions to release available space?

Here, we also take MiniTool Partition Wizard Free Edition for example.

To delete recovery partition or OEM partition in Partition Wizard, just take the following steps.

Step 1: Launch the freeware to get its main interface.

opt for partition you want to delete and tap theDelete Partitionfeature.

Step 2: Click theApplybutton to perform the change.

In MiniTool Partition Wizard, you could easily delete OEM partition and recovery partition to release free space.

See the following part to get specific tutorial.

Then, use its embeddedBootable MediaBuilder tobuild Boot CD/DVD Discs and Boot Flash Drive.

Then, you should enter the BIOS setting and set the computer to boot from this Bootable Edition.

Step 1:You will enter this interface as follows.

For example, Disk 3 is used to implement the new Windows.

After that, clickOKto go back to the main interface.

Start the computer via the installation disk, and in the following interface,you might create partitions manually.

Here, you are able to create partition(s) via theNewfeature.

Final Words

Now, most of you would be clear of strange partitions on laptops, right?

Strange Partitions on Laptops FAQ