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: Can I safely remove existing partitions before installing Windows 7

11 Jun 2011   #1

windows 7 32 bit
Can I safely remove existing partitions before installing Windows 7

I was going through the instructions on TweakHound for a clean install of Windows 7.
1 - Boot up from the Windows 7 installation disc.
2 - Choose Repair your computer.
3 - In the System Recovery Options screen, choose Use recovery tools... and click Next.
4 - Open the Command Prompt.
5 - Type diskpart and hit Enter.
6 - Type list disk . Find the disk you wish to install Windows 7 on. If you only have one disk then it will show as disk 0. If you have multiple disks find the drive you wish to install 7 on.
7 - Type select disk 0 (or use the number of the disk you wish to install Windows 7 on)(note - that is a zero)
8 - Type list partition. There shouldn't be any.
9 - Type create partition primary.
10- Type select partition 1.
11- Type active.
12- Type format quick.
13- When finished reboot and begin your installation.

I got to step 8 and when I did a "list partition" there are 4 partitions on my machine.
Partition 1 - OEM 47MB
Partition 2 - Primary 51GB
Partition 3 - Primary 17GB
Partition 4 - Primary 4753MB

Where do I go from here? Do I use the current configuration? Delete partitions (if I do that how do I do that?) Which partitions to keep?

Thank you!

My System SpecsSystem Spec

11 Jun 2011   #2

Windows 7 Ultimate x64 SP1

Hi Paula and welcome to SF!
I see that there is an OEM partition. You cannot use the recovery disk to reinstall.
For an OEM reinstallation, please read Warning box here. But if you purchased a full license package you can delete all partitions. Read how to below.
Install - Clean Install Windows 7
Hope that helps.
My System SpecsSystem Spec
11 Jun 2011   #3
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8

Paula, I would recommend you post a picture of your Disk Management so that we can see what you are dealing with. And what is the origin of your Installation disk?
My System SpecsSystem Spec

11 Jun 2011   #5
Bare Foot Kid
Microsoft MVP

W 7 64-bit Ultimate

Hello pms1228, welcome to Seven Forums!

If you want to do a complete wipe of the Hard Disk Drive / Solid State Drive and then start the installation process again, have a look at Step One of the Optimize tutorial below; after you have copied out or made back-ups of the data you need to save to external media, then boot the Windows 7 installation media to do the wipe secure erase to the HDD / SSD and be sure to post back with any further questions you may have and to keep us informed.

SSD / HDD : Optimize for Windows Reinstallation

DISKPART : At PC Startup
  • If you do not want to create the new Windows 7 "System Reserved" partition use the outline in Step Two #2 to create, format and mark Active a single 100GB partition to do the installation to.
  • If you do want to create the "System Reserved" partition use the outline in Step Two #3 to create, format and mark Active the System Reserved partition and then create and format the 100GB partition to do the installation to.
Either way, running the clean all then creating and formatting the partition(s) using diskpart will get you the best possible space to do a clean install of Windows 7 to; you can always extend the Windows partition to include the remaining unallocated space on the HDD / SSD or create additional Primary partitions or an Extended partition after the installation completes if you choose.
My System SpecsSystem Spec

 Can I safely remove existing partitions before installing Windows 7

Thread Tools

Similar help and support threads
Thread Forum
How to remove partitions & install Windows 7 cleanly ?
Hello Guys, This is my story ..... I'll try to make it as short as possible :) Some days ago, my PSU in the CPU failed and it never started. I didn't want to repair it since components were old.This CPU ( Old CPU ) has 2 hard disks and 4 partitions . I have got a new CPU with the latest...
Installation & Setup
W7 Pro multiple existing partitions
I have a 6 month old Samsung ultraportable that has developed Windows problems and I am trying to re-install Windows 7 Pro. The history is that Windows 7 Home Premium came pre-installed, and I upgraded to 7 Pro right after I bought it, with no problems. Everything has been great until the last 2...
Installation & Setup
How do I dual boot windows 8 safely on an existing windows 7 install?
I have a install of Windows 7 on my computer which I am not willing to remove and reinstall. I would like to try out the Windows 8 developer trials, it seems logical given my situation to dual boot, allowing me to keep my current install and test Windows 8 simultaneously. I have a spare 80gb hard...
Installation & Setup
How to remove hardware (magicjack) safely in windows 7
Hey, This is my first post :) I wanted to know if there is a safe way to remove magicjack after using it. I just use it once a week. When it has not started there is an option in the taskbar to remove is safely but once it is started it no longer appears there. So once I am done using it i just...
Hardware & Devices
Can I remove an item from safely remove hardware list?
Hi all, In the safely remove hardware menu (from clicking the icon in the task bar) I have both my internal sata hard drives listed. I'll never want to remove these so is there a way to remove them from the list? I'm guessing it might require some registry editing but I've no idea where to...
Hardware & Devices
Windows 7 safely remove hardware annoyance
It is difficult to remove multiple flash drives using the safely remove hardware dialog. I had three flash drives plugged into a USB hub, and I wanted to remove all three at once. I click on the remove hardware icon in the notification area, but it only allows me to select one drive at a time. ...
General Discussion

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 05:53.

Twitter Facebook Google+

Windows 7 Forums

Seven Forums Android App Seven Forums IOS App