Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: HDD Partitioning for Clean Install Windows 7 - How many, what size?

07 Jan 2013   #1
Novice 4 Fun

Windows 7 Professional SP1, 32-bit
HDD Partitioning for Clean Install Windows 7 - How many, what size?


I am doing a clean install of Windows 7 on a Dell Latitude E6520 with a 232 GB HDD. I have already cleaned ("clean all") the HDD via DISKPART.

OPTIONS: I've studied several tutorials from this site, all excellent. Particularly relevant was Bare Foot Kid's 07/14/2010 tutorial, "How to Ready an SSD / HDD to Reinstall an Operating System". Step Two of that tutorial listed 3 options for creating a partition:
  1. Create a single partition of the entire HDD,
  2. Create a specific size partition, or
  3. Create a System Reserved partition.
QUESTIONS: The above tutorial indicated there has been problem with some HDDs or partitions being "too large". So, my questions:
  1. Which of the three options listed above would be best? (I prefer simplicity. I just want my machine to work well and efficiently.)
  2. If more than one partition, then how many should I create and what size should they be?
My need/use of the machine will be basic family computing - nothing heavy duty. I will not be running multiple operating systems, will have no need for dual boot, etc.

I appreciate your help.

My System SpecsSystem Spec
07 Jan 2013   #2

Windows 7 Pro x64 Windows 10 Pro x64

With that size drive you could make 2 partitions. C at least 100 GBs and D the rest.
My System SpecsSystem Spec
07 Jan 2013   #3
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8

I would make:

C: at appr. 60GB - that is more than plenty. Make that a primary partition

One partition for the data. I would assume that 80GB is enough. Make that an extended/logical simple partition.

An additional partition of the rest for images and miscellaneous. Make that a logical simple partition.

If you later need more space for the data, you can always get it from the 3d partition.
My System SpecsSystem Spec

07 Jan 2013   #4
Microsoft MVP


Everything you need is here to Clean Reinstall - Factory OEM Windows 7.

Clean All command is only to make data unrecoverable by most all methods. The only cleaning which might be needed to overcome an install blockage is if the boot sector needs clearing which can be done with the simple 10-second Clean command. Otherwise delete all partitions and create new one(s) as you wish during Steps 6/7 of Clean Install Windows 7 ignoring the 100mb boot partition created.

Whether you create more than one partition depends largely on if you want your data in the OS partition or have it linked from another partition so that your C partition backup image remains smaller - this way if Win7 becomes irreparable you can re-image the OS/Programs to C and the data will be current and waiting in its own partition.
My System SpecsSystem Spec
08 Jan 2013   #5

Windows 7 32 bit

You just Create a single partition of the entire HDD, and clean install your windows after that if you want to more partition than you could used shrink volume option under the disk management....
My System SpecsSystem Spec

 HDD Partitioning for Clean Install Windows 7 - How many, what size?

Thread Tools

Similar help and support threads
Thread Forum
Still need help partitioning during clean install of Windows 7 64-bit
I want to do a clean install with my Windows 7 Ultimate 64-bit disc. Here's what I wanting to do. I want a partition that I can install the just operating system on. It is important to me that this be a "recovery" partition...something I can use for a complete reinstall should I ever lose my...
Installation & Setup
How to set System Reserved size on clean install.
Hello everyone, I'm currently running Windows 7 Pro 64 bit. I have a 55gb Windows Partition and a 300mb System Reserved partition. I'm going to do a clean install next week and I was wondering if I can set the System Reserved partition size during installation, so I don't have to alter the...
Installation & Setup
Clean installation and partitioning help!
I have a Toshiba laptop with 2 partitions- One with windows vista on it and one for backups. I want to join the two partitions and use the Windows 7 Upgrade pack and do a clean installation. How would i go about joining the two partitions? Am i able to use the upgrade version to install it? ...
Installation & Setup
OS file size and partitioning problem
I recently purchased a Dell PC with free Windows 7 upgrade. I only installed Mozilla Firefox and Norton Internet 2009 on the PC before I upgraded to Windows 7. I decided to do a custom install from the upgrade DVD so that I could change the partitioning following an article in the November issue...
Installation & Setup
Partitioning during Clean Install
I know I have did this when I was installing Win 7 and was able to have Win 7 do the partitioning. If possible can some one tell me the screen where i can get into the partitioning phase. I can't find it again to save my life. Thank you
Installation & Setup

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 16:38.
Twitter Facebook Google+