Extend system partition

Posted on 2018-02-18
Medium Priority
Last Modified: 2018-02-18
Extend system drive on a 2008R2 server. From Google basically I found where everyone said it takes a third-party software to accomplish this task. This morning in a desire to practice using some of this software I set up a lab server 2008R2. Partitioned the first drive (300GB) into a 100 GB partition and a 200GB partition which I installed the OS to the first 100  GB partition. Installed some drivers, rebooted server. Formatted the 200GB partition copied a few files over to it and rebooted again. All looked good and was ready to download 3rd party software to begin testing.
However on a whim I went into Disk Management, deleted the second partition click on the C: (system) drive and the extend button was available. I extended the 100GB C: to a total of 300GB now.

Is this a fluke, am I missing something
Question by:warsawtech
LVL 97

Accepted Solution

Lee W, MVP earned 2000 total points
ID: 42473381
Disk management can extend C: volumes PROVIDED there is free space AFTER the C: drive.

For example:
a 250 GB disk.
C: is 100
D: is 100
and there's 50 GB of unallocated space

In this scenario, you CANNOT extend C: because the free space is after D:.  A third party product is required to essentially "move" D to the end of the disk and give you 50 GB BETWEEN C and D.  THEN you can extend the space.

You also have to be aware - if the C: drive is next to an extended partition it may look unallocated, you still need to delete the Extended partition.

IF you had:
C: 100
D: 50
E: 100

And then you moved everything off D: and onto E:, then deleted D: you could extend C: into that 50 GB space.

(MBR based disks are limited to 4 partitions - typically 3 primary and 1 extended (the extended can then be broken up into logical drive letters but strictly speaking, they are not partitions.  GPT based drives (C: must be MBR unless computer supports and uses UEFI instead of BIOS) can support up to 127 partitions.)

Author Closing Comment

ID: 42473398
Thanks Lee for spelling it out for me


Featured Post

Train for your Pen Testing Engineer Certification

Enroll today in this bundle of courses to gain experience in the logistics of pen testing, Linux fundamentals, vulnerability assessments, detecting live systems, and more! This series, valued at $3,000, is free for Premium members, Team Accounts, and Qualified Experts.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Conducting a customer service survey used to be as straightforward as sending a template email out using checkboxes and numerical rating systems to measure satisfaction.
A discussion about automated testing of Web Applications utilizing Selenium, along with illustrated configuration steps for the Jenkins open source tool.
This video Micro Tutorial shows how to password-protect PDF files with free software. Many software products can do this, such as Adobe Acrobat (but not Adobe Reader), Nuance PaperPort, and Nuance Power PDF, but they are not free products. This vide…
Please read the paragraph below before following the instructions in the video — there are important caveats in the paragraph that I did not mention in the video. If your PaperPort 12 or PaperPort 14 is failing to start, or crashing, or hanging, …

624 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question