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: Clean Re-Install unknown partitions?

25 Jan 2015   #1

Windows 7 Home Premium 64 bit
Clean Re-Install unknown partitions?

I am currently doing a clean re-install, but there are 4 partitions that I am wondering if are ok to delete. It would be great if you could tell me why because I don't want to make a mistake. I have one 500mb total size called Disk 0 Partition 1: ESP type:system. The next one is a Disk 0 Partition 2: DIAGS 40mb. I have an Alienware aurora r4 so I think that is dell diagnostics tool. Next is partition 3 128mb that is MSR reserved. Finally is the recovery partition which I think I can delete. So basically I want to now which one I can safely delete without having any problems. I delete some registry keys accidentally and I wanted to do a clean re-install to play it safe.

My System SpecsSystem Spec
25 Jan 2015   #2
Microsoft MVP


You should be following Clean Reinstall Windows 7 espeically the Special Note for Dell Owners at the which explains how to determine whether to keep the OEM Utiliity partition if it will still boot and run Dell Hardware Diagnostics from F12 Menu. If so delete all but that partition to create and Format new as you please. If not then delete all partitions and do same.

Everything that works best is in the blue link, used so far by over a million consumers without a single complaint.
My System SpecsSystem Spec

 Clean Re-Install unknown partitions?

Thread Tools

Similar help and support threads
Thread Forum
Clean install W7 without extra partitions
There are three partitions currently on my disk. I know that 100Mb section is for boot files and a reserved section (14Gb, really???) is for recovery. But I would prefer to have just one solid partition with all boot files on it and with no extra partitions. I understand I can do it only during...
Installation & Setup
unable to delete partitions for clean install windows 7
Trying to do a clean install Windows 7, have enough space, Dell Studio 1555 laptop. When I get to the screen "Where do you want to install Windows?" I have: Disk 0 Unallocated Space 298.1GB At the bottom of the screen: Refresh Load Driver Delete (grayed out) Extend (grayed out)
Installation & Setup
Doing a clean W7 Install : How do I go about the partitions?
Hello, This is my first post, and I'll start by saying that I'm not that great at computers. I had some issues with my computer, and just want to do a clean install. I'd like to figure out, step by step, how to do it. I have already read the tutorials, but I just want to make sure I'm right,...
Installation & Setup
OK to do clean re-install windows7 drive C:? Affect other partitions?
Just a basic user here so thought I would ask somewhere on the internet before attempting. Have windows7 installed on drive C:, and have win7 and winxp installed on two other partitions (E: & F: ) on the same hard drive. Last year I used EasyBCD so that 7 and XP could dual boot as options. ...
Installation & Setup
Clean Install 2 partitions - Where to install applications?
Hello, I Installed my windows 7 on C. Now I have 100GB Free on D. So I was thinking if it's good idea to install programs on D? and keep C for windows only? Like Install firefox, antivirus all in D..Is that a good idea? or will my laptop be slow? This is my laptop: Toshiba...

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 05:54.
Twitter Facebook Google+