I am using Windows XP. WHen I turn on the computer, it states that they is no active partition. I want to create a particition. How do I do that? I went into Setup but I was unable to locate anything there. Thanks!!
![]() |
Patch reliability is unclear. Unless you have an immediate, pressing need to install a specific patch, don't do it. |
SIGN IN | Not a member? | REGISTER | PLUS MEMBERSHIP |
-
Active Partition when booting
Home » Forums » AskWoody support » Windows » Windows Vista, XP and earlier » Questions: Vista, XP back to 3.1 » Active Partition when booting
- This topic has 4 replies, 4 voices, and was last updated 19 years, 5 months ago.
AuthorTopicWSStephMungara
AskWoody LoungerNovember 7, 2005 at 7:04 pm #426091Viewing 2 reply threadsAuthorReplies-
joep517
AskWoody MVP -
WSkaplinb
AskWoody LoungerNovember 7, 2005 at 8:22 pm #983650From account with Administrator rights, click Start | Run, type
diskmgmt.msc
and hit Enter. Disk Management console will open. On the lower pane select your boot partition (usually C ), right-click it and from pop-up menu choose “Mark partition as active”. If partition was marked as active already, this option will be greyed out.But if you are doing fresh install of Windows XP (it is not clear from your post), after booting up from Installation CD, delete all existing partitions and then create new ones or simply install WinXP on the unpartitioned space. Windows will create a partition and set it active automatically.
-
WSStephMungara
AskWoody Lounger
-
-
WSLiberty Raynes
AskWoody LoungerNovember 7, 2005 at 8:32 pm #983653Your post is a bit vague. If you already have installed XP, and are just now getting this error, you probably did some damage to your Master Boot Record. To fix it, boot from a Windows 98 boot floppy diskette (get one here ), and use the undocumented /mbr switch with the FDISK command. At the A:> prompt, just type: FDISK /mbr . This should work whether your disk is formatted with FAT32 or NTFS. If you have not yet installed Windows, you can create a new partition by either typing FDISK (without the mbr switch) at the A:> prompt, and choosing to create a Primary DOS partition, OR you can boot from the Windows CD, and create a partition by following the prompts. The following article may be of help. Partitioning with XP
Edited to add: If you run the FDISK command, then choose option 4, you should be able to see whether or not you have a partition already defined. If you do, you just need to use the /mbr switch as above to set that partition active.
Viewing 2 reply threads -

Plus Membership
Donations from Plus members keep this site going. You can identify the people who support AskWoody by the Plus badge on their avatars.
AskWoody Plus members not only get access to all of the contents of this site -- including Susan Bradley's frequently updated Patch Watch listing -- they also receive weekly AskWoody Plus Newsletters (formerly Windows Secrets Newsletter) and AskWoody Plus Alerts, emails when there are important breaking developments.
Get Plus!
Welcome to our unique respite from the madness.
It's easy to post questions about Windows 11, Windows 10, Win8.1, Win7, Surface, Office, or browse through our Forums. Post anonymously or register for greater privileges. Keep it civil, please: Decorous Lounge rules strictly enforced. Questions? Contact Customer Support.
Search Newsletters
Search Forums
View the Forum
Search for Topics
Recent Topics
-
Forcing(or trying to) save Local Documents to OneDrive (Awaiting moderation)
by
PateWilliam
1 hour, 32 minutes ago -
Hotpatch for Windows client now available (Enterprise)
by
Alex5723
2 hours, 11 minutes ago -
MS-DEFCON 2: Seven months and counting
by
Susan Bradley
2 hours, 55 minutes ago -
My 3 monitors go black & then the Taskbar is moved to center monitor
by
saturn2233
12 hours, 27 minutes ago -
Apple backports fixes
by
Susan Bradley
2 hours, 58 minutes ago -
Win 11 24H2 will not install
by
Michael1950
12 hours, 41 minutes ago -
Advice to convert MBR to GPT and install Windows 11 Pro on unsupported PC
by
Andy M
12 hours, 12 minutes ago -
Photos from iPhone to Win 10 duplicating/reformatting to .mov
by
J9438
14 hours, 19 minutes ago -
Thunderbird in trouble. Here comes Thundermail
by
Alex5723
12 hours, 28 minutes ago -
Get back ” Open With” in context menus
by
CWBillow
1 day, 1 hour ago -
Many AMD Ryzen 9800X3D on ASRock have died
by
Alex5723
1 day, 5 hours ago -
simple general stupid question
by
WSaltamirano
23 hours, 8 minutes ago -
April 2025 Office non-Security updates
by
PKCano
1 day, 16 hours ago -
Microsoft wants to hear from you
by
Will Fastie
16 hours, 15 minutes ago -
Windows 11 Insider Preview Build 22635.5160 (23H2) released to BETA
by
joep517
1 day, 19 hours ago -
Europe Seeks Alternatives to U.S. Cloud Providers
by
Alex5723
2 days, 1 hour ago -
Test post
by
Susan Bradley
2 days, 3 hours ago -
Used Systems to delete Temp files Gone WRONG what does this mean?
by
Deo
2 days, 5 hours ago -
SSD shuts down on its own
by
CWBillow
1 day, 20 hours ago -
OneDrive File Sharing Changes
by
David Clark
2 days, 13 hours ago -
OneDrive File Sharing Changes
by
David Clark
2 days, 15 hours ago -
Win 10 Pro 22H2 to Win 11 Pro 23H2 Conversion Guide
by
doneager
1 day, 15 hours ago -
Today is world backup day
by
Alex5723
2 days, 6 hours ago -
Windows .exe on Mint
by
Slowpoke47
11 hours, 54 minutes ago -
Reviewing your licensing options
by
Susan Bradley
1 hour, 17 minutes ago -
Apple has been analyzing your photos since September 2024
by
B. Livingston
1 day, 12 hours ago -
What Windows 11 24H2 offers beyond bugs
by
Lance Whitney
1 day, 7 hours ago -
Making sense of Settings in Windows 11
by
Simon Bisson
1 day, 9 hours ago -
Windows 11 pro fails to log in after upgrading Win 10 pro to Win 11 pro 24h2
by
ben_sitaud
2 days, 13 hours ago -
23H2 / 24H2 / Local v. Microsoft Account.
by
CWBillow
2 days, 10 hours ago
Recent blog posts
- MS-DEFCON 2: Seven months and counting
- Apple backports fixes
- April 2025 Office non-Security updates
- Microsoft wants to hear from you
- Reviewing your licensing options
- Apple has been analyzing your photos since September 2024
- What Windows 11 24H2 offers beyond bugs
- Making sense of Settings in Windows 11
Key Links
Want to Advertise in the free newsletter? How about a gift subscription in honor of a birthday? Send an email to sb@askwoody.com to ask how.
Mastodon profile for DefConPatch
Mastodon profile for AskWoody
Home • About • FAQ • Posts & Privacy • Forums • My Account
Register • Free Newsletter • Plus Membership • Gift Certificates • MS-DEFCON Alerts
Copyright ©2004-2025 by AskWoody Tech LLC. All Rights Reserved.