Reformat hard drive under XP?

Category: Windows

"I have Windows XP and the system has gotten very slow and flaky. I would like to learn how to reformat the drive. Can you teach me in simple English how to completely format the drive and then re-install the operating system?" Yes, but... you might want to think about some alternatives first.


Do You Really Want To Format That Hard Drive?


Be forewarned, formatting a hard drive is MUCH different than formatting a Word document. The format will erase *everything* on the disk (the operating system, your programs and data files) and leave you unable to even boot up the PC. About the only thing you can do with a freshly formatted drive is install an operating system from CDROM.

I know... that's exactly what you said you wanted to do. But that *may* be a bit drastic. After re-installing Windows XP, you will need to reapply all the patches and fixes from Microsoft, then reinstall all the software packages you previously had. It could take many hours just to download the Windows Update files.

I'm guessing you're considering this move because your PC has been infested by a bunch of spyware and/or viruses, and is now acting sluggish and flaky. But before you go all samurai on your hard drive, I recommend you follow all the steps in my Make Windows Run Faster! article. It's my special recipe to clean gunk out of your computer's pipes, so Windows will start quicker, run more reliably, and go faster on the info-superhighway.

If you really want to format your hard drive...

You can't... at least not while you're running Windows. You'll have to reboot from the Windows XP installation CD, because you can't format the drive on which Windows is running. But first you'll probably want to back up your hard drive, or at least part of it. For help with that, see Backing Up Your Files and explore the various options for backing up your personal files.

Okay, back to reformatting... when the install disk boots up, press ENTER at the "Welcome to Setup" screen. If prompted to do so, press F8 to agree to the license. Next, you’ll see a message asking if you want to repair your existing installtion. You don't, so press ESC to bypass the repair option.

Now select the partition where Windows is installed, then press D to delete it. Press L to confirm the delete. Okay, it's time to create and format a new partition. Select the unpartitioned space and press C to create a new partition. Allot the maximum amount of space available, then press Enter.

Now select the partition you’ve just created, and format it. Choose the NTFS option, go for the "quick format" then sit and wait. When the new partition is formatted, you're ready to (re)install Windows. Depending on your hardware, you may also need to re-install some software drivers to support a modem, router, printer or other devices. Make sure that you have the driver CDs handy in advance. Don't forget to reinstall your anti-virus and anti-spyware software, and be sure to visit Windows Update as soon as possible to ensure that you have all the latest security fixes.

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Posted by Bob Rankin on March 14, 2006 12:02 PM


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Related Keywords: Windows   format   hard drive   reinstall   windows  

Most recent comments on "Reformat hard drive under XP?"

(See all 95 comments for this article.)

Posted by:
lane
27 Dec 2008

how do we delete windows with a virus on a computer

EDITOR'S NOTE: Better to just remove the virus... see http://askbobrankin.com/should_i_buy_antispyware_or_antivirus_software.html


Posted by:
power
30 Dec 2008

Everything works fine until I want to delete existing partiton- intaller says it can't be deleted because there're temporal installation files which are needed for the installation.

EDITOR'S NOTE: Sounds like you forgot to boot from the CD...


Posted by:
Whitney
21 Jan 2009

After I did the reformat, when it restarted, I didn't push anything so it would do the last part of the installation. However, it just says installing windows but it won't do anything. It says setup will complete in approximately 39 minutes, but no time ever passes.Then 20 minutes later a fatal error will show up saying that an error has been encountered that prevents setup from continuing, it had a problem registering initpki.dll

EDITOR'S NOTE: My guess would be a bad spot on the Windows Setup CD. You can try cleaning it, but you may need to beg/borrow/buy a replacement CD.


Posted by:
John
07 Feb 2009

Hi, Great info site but must admit to information overload. I don't know which way to go. I have a 6yr old pc running XP with 2 80GB HDD. My main drive(C)which has my operating system is nearly full and is starting to hang every 5 mins or so and locks the whole system up for about a minute at a time.. I have never ever done a back up of any description.

With trying to do the back up of 6yrs of family photos and documents and files etc I assume that the best way of doing this is getting an external HDD?

I would also like to add a much bigger HDD (500GB)and just use the two lesser drives for other things, but I will have to reformatt the old drive and setup XP on the new HDD. Is this an easy task to perform or should I just pay the experts to do it for me. They do want a lot of $ to do it something which I'm sort of lacking at the moment.

EDITOR'S NOTE: John, you could do a full image backup of your C: drive to the D: drive, with something like Acronis. Then restore the backup to the new drive. But you'd have the same 6 years of crud dumped onto a shiny new drive. Better to install XP fresh to the new drive, keeping the older drive(s) as slave drives. Then you can copy anything you need from them to the new drive, before retiring them.


Posted by:
Francis
15 Feb 2009

I followed the reinstall, which I have done many times in the last 20+years. But every time I try to do a windows format and install on my old hard drive it says it can not detect my hard drive and I should exit the install.

I have taken out the disc and reboot the computer and started windows and everything works fine and disk has been scanned without finding an error. Even used a diag utility to checking the drive with no problems found.

I tried doing the repair windows option also to see how it would come up but it doesnt notice my hard drive either. It is a normal Sata drive and should not require any drivers.

EDITOR'S NOTE: The problem is likely that the install CD does not have the SATA drivers. Here is a link that should help: http://news.softpedia.com/news/Install-Windows-XP-On-SATA-Without-a-Floppy-F6-47807.shtml


Posted by:
Brendan
25 Mar 2009

I recently received a Trojan/Spyware/Worm/ect. riddled computer from my aunt, earlier you mentioned to lane that it is better to just remove the virus but seeing as this hard drive was stuffed by my aunt i would still need to reformat it. First of all it is a Compaq running windows XP. It has to hard drives the master being the Trojan laden and stuffed while the slave is empty. I do not have any of the original disks but do have my own copy of XP which i plan to use. What is the easiest way to reformat the master drive and re-install XP on to the current master?

EDITOR'S NOTE: Did you read the instructions in the article here?? I'd still caution you that malware removal may be a lot simpler, for all the reasons listed in the article.


Posted by:
Jodi
03 Apr 2009

I finished following the directions above and am now at the Set Up page again. I have 3 partitions and the largest that used to be the C: drive is now the D: drive. Is the D drive what I select to reinstall windows?

EDITOR'S NOTE: Generally the system is installed on the C: drive. Are you saying you don't have a C: drive? That would be very odd...


Posted by:
Johnny
07 Apr 2009

Ok.. here is my prob... I have an older(6 or older) HP PC it starts up fine. .. But when you go to try to update anything(mozilla-IE6-Safari-WoW...etc) you no longer can view the internet but it says your fully connected to the internet... So will reformating the drive fix my prob and also.. no true restore disc came with this pc.. they made it on a partition of the hard drive.. which I have made a back up disc of... will this allow me to totally wipe my drive and restore it back to factory (i kinda only want windows and drivers on the pc...)??? Any help will be appreciated!! :)

EDITOR'S NOTE: Reformatting the drive and re-installing the operating system will cure ANY software problem. But in most cases, it's an extreme solution of last resort. Have you tried scanning for viruses and spyware?

If you can boot from the CD you made, it MAY act like a Windows Setup disk, but I'm not sure. Usually, there's an option at boot time to reload your system from the recovery partition.


Posted by:
Nauratan
15 Apr 2009

I have Windows XP on my Compaq PC, Now somehow certain Spyware came into the PC through Internet even though I had the Cyberdefender running on the PC. Now, due to the spyware the computer got a problem of restarting on running the spyware scan and on opening ebay etc.

So, I decided to reformat the C drive and reinstall Windows XP from the CD and I did exactly as what is written in your article about formatting the hard drive but after choosing the NTFS format and pressing ENTER for Windows to Install on C Drive just a few seconds later a Blue screen appeared showing: A problem has been detected and windows has been shut down to prevent damage to your computer.
Page_Fault_In_Nonpaged_Area with the Technical Information: STOP: 0x00000050 (0xE95D5618, 0x00000000, 0x8081882C, 0x00000002)

I wonder why it showed that windows has been shut down because I had already formatted the C Drive containing the Windows XP and its reinstall was still in process.

Now, later I realized that my system was a FAT32. So, I again did the same procedure and converted it into FAT32 from NTFS but still the same screen appeared and I am unable to install the Windows XP any longer. The system's hardware is absolutely fine because I had started using it a fresh since 2 weeks back only, and it was doing wonderfully well before that spyware came in.

EDITOR'S NOTE: My guess would be faulty RAM memory. Try swapping out the RAM to see if that fixes the problem.


Posted by:
Alex
15 May 2009

I recently formatted my drive (320GB Hitachi) and now my OS (XP) will not install. I do not have a single install disk, I have a dual disk that came with my computer (Power Spec) I have tried to install in every which-a-way with every jumper settings and ribbon settings (master/slave slave/master, stand alone etc...Nothing. When I try to install it'll go thru the steps but hangs/freezes up. Is there something im not doing?


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