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Can I reinstall Windows XP SP1 over Windows XP SP2?

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I have a Shintaro USB flash driver and my operating system is XP home edition. I installed the flash driver and it's been operating fine - transferring data between computers. Suddenly it doesn't appear as a separate drive on My Computer and when I plug it in, it makes a double "bling" sound instead of a single one. I recently installed Windows service pack 1 (2 was already installed.)

I'm afraid you probably answered your own question. Installing SP1 on top of SP2 should not work. To be honest, I'm surprised that installing SP1 on top of SP2 didn't give you some kind of error message.

But if it succeeded ... well, that's just not good.

First let's be clear. Service packs are cumulative. If you install SP2 you don't need to install SP1 ... everything in SP1 is already in SP2 (unless of course it was something that needed to be fixed by SP2).

And if you don't already have SP1, you don't need to install it before SP2 ... just install SP2.

As I said, installing SP1 on top of SP2, if it actually succeeds, can only cause problems, in my opinion. I'd certainly suspect it with the symptoms you're seeing on your USB drive.

If you're trying to revert from having installed SP2, you need to use uninstall, if you had SP2 create an uninstall directory when it was installed. If you didn't, you'll need to reinstall Windows XP to revert.

If you're just trying to fix a problem you believe has been caused by SP2, then I'd start by running the system file checker (See What is the System File Checker, and how do I run it?).

But I will warn you. If SP2 caused you problems, there are many possible reasons, most of which are in your control. Making sure you're spyware-free before you install it is perhaps the most important, so if you do start over, make sure your machine is as clean as possible and follow the instructions in my prior article Will SP2 Crash my machine?.

But you don't need to install SP1 if you're going to install SP2.

Related:

Article 4415 | Posted March 29, 2005

Recent Comments

Is it possible to run Windows XP Pro SP1 AND Windows XP Pro SP2 on the same machine as two separate O/S, maybe in separate partitions? The reason I ask is that there are several things I can do using SP1 that SP2 won't allow. For instance, I can no longer embed sounds in an email message using View, Toolbars, Web Tools. You will see that the sounds icon is inaccessible although you can do it using SP1. Thanks.

Posted by: Stu Miller at August 11, 2006 10:20 AM

I try to install SP2 and half way through i get a error message on a blue screen. I don't what the problem is? Could it be a driver or some kind of program? If so how do i find it and fix it? Please Help Me my computer needs SP2, Thank You

Posted by: DaGr8One at September 20, 2006 08:18 PM

if i'm having sp1 package
on that sp1 i can install sp2 from internet.downloading.....

Posted by: shoaib at September 23, 2006 02:34 AM

when my windows start its showing 2 mesages whether 1.i should start windows with boot screen and 2.start with windows normally why??its hapening.

Posted by: shoaib at September 23, 2006 02:36 AM

my yahoo messenger id had been hacked sice from 5-6 months i dint remmber any account information ?please if u have any soultion for that tell me in easy method.

Posted by: shoaib at September 23, 2006 02:39 AM

Well I see your comments are mostly full of trash, but I'd like to correct one thing - you DON'T need to reinstall Windows if your SP installation is corrupt. Just insert the boot disk and do a REPAIR INSTALL (you'll find lots of guides by using Google) - this will reinstall all system files - effectively wiping out any service pack upgrades and hotfixes - but will leave personal files and installed programs intact. I hate it when people give out bad advice to the effect of "your only option is to reinstall and lose everything", because to most people, reinstall = reformat and very few know about the repair install feature.

Posted by: filecore at March 22, 2007 06:38 AM

Dear Mr. Leo,
I have this comment: Should'nt we all simply forget about windows, which the way I see it, it's been full of problems since microsoft started to prevent people to use windows (any version) for free.. As I was told, Microsoft has a whole department(s) simply to attack users; the proff is on the case seen on the news about the hacker that got busted and has currently "house for jail" ...BUT the judging says that he cannot use Linux instead of windows because with Linux the government cannot spy on him to know about his activities...(I wonder if is a goverment department of Microsoft jajaja)...anyways, my final comment would be SHOULD'NT WE ALL USE LINUX INSTED AND AVOID ALL THIS TROUBLE???
I am seriously thinking on starting to set my company's computer to Linux...

Posted by: Angelica Weir at October 7, 2007 05:13 AM

And 09/11 was an inside job, right??

Posted by: CS at November 27, 2007 09:42 AM

hi sir,

i'm experiencing problem right now with my computer(xp sp2) because it is not getting an ip address from the modem though the modem has an active internet connection when we connect another computer to it. we already change the LAN CARD of the desktop but when we do ipconfig we are not getting any ip address and we're getting an error code 2 when we do "ping loopback" in the command prompt. when we check the status in the network connection it says connected but we're not getting any ip address. a friend told me that maybe i need to uninstall and reinstall the tcp/ip but when i go to the LAN properties window the uninstall option is greyed out when i click on tcp/ip. is it a problem of the computers winsock? pls i need your advise with this. i'm really planning to uninstall and reinstall the OS but i think all the files will be deleted when i;ll do that right? can i save the back up file in a floppy?

Posted by: shaoran at January 13, 2008 04:00 AM

I have been trying to do a repair on my dell laptop but has not succeeded. Currently I have XP home edition SP1 CD (laptop is running xp SP2), cannot access the boot menu either after restart, is their a way to repair? I am not even sure I can reinstall since it Setup cannot continue because the version of Windows on your computer is newer than the version on the CD. Help. Thanks.

Posted by: Ashley at August 5, 2008 07:24 PM

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