Change Motherboard Serial Number

23.12.2020

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I'm going to have to use the disk utilities to put the serial number in my T41 after a motherboard replacement. I don't have a USB floppy and my son told me about an alternative. I took my '9 IN 1' memory card reader and writer and put in a MMC card.
I want to change my motherboard serial number without changing the motherboard. Oct 7, 2009 35,396 1,331 130,490 6,141. Apr 27, 2010 #2.

In many laptop computers, including ToughBook CF-18 laptops, the BIOS is protected by a passcode, or serial number. Fortunately, in the event that you lose or forget this passcode, you can reset it manually. This is done by removing and replacing the CMOS, a small, watch-like battery attached directly to the motherboard. I did not plan to change the motherboard but i had to after busting a connector when i cleaned the heat sink & fan. This is a qote from the article- 'According to Gabriel Aul, Vice President of Engineering for the Windows & Devices group at Microsoft, you can then contact support from within Windows 10, explain the situation, and they’ll activate Windows 10 for you'. I was hoping that this. Usage is pretty straightforward and you simply choose your drive from the drop down box, enter the new serial number and click the Change button. Do note the serial number format as mentioned in the window is made up of 8 hex characters from 0-9 and A-F split by a “-” into two groups of 4. You will then need to reboot to commit the changes. Yes, a power user can change nearly all serial numbers using either service utilities like AMI DMIEdit or by editing BIOS chip contents manually. Most desktop motherboards right now are coming with empty MBSN and UUID, except for ASUS ones.

Learning has never been so easy!

We recently had a motherboard changed on a Latitude D630 and then discovered some funny things happening in spiceworks. The laptop was being reported as an OptiPlex workstation instead of a Latitude laptop and the warranty info was incorrect. After looking into the problem I discovered the Service tag in the BIOS did not match the service tag on the bottom of the laptop and that is why information was being reported incorrectly. After being on the phone with Dell (and trying to use the asset application to change the service tag) I was told that the motherboard had to be replaced and the tech would put on the correct service tag. This didn't seem right to me as the system was working perfectly otherwise, so I did some digging on the net. Here is my solution.

Update: this 'How to' is quite old now and seems not to work on newer models. Some people have had luck with finding newer Dell diagsnostic cd images or see this article:
http://www.anchor.com.au/blog/2013/06/how-hard-is-it-to-set-the-service-tag-on-a-dell-motherboard/

9 Steps total

Step 1: Download the Dell Latitude and Inspirion BIOS Upgrade and Diagnostics CD

I found it here:
http://rs331tl.rapidshare.com/files/145322470/4125801/Dell_Portable_Bios_and_Diags_Rev_A34.zip
THIS LINK IS DEAD..try this instead

http://pcemporium.webs.com/Dell%20Bios%20Reset.iso
it's not the same software but works..

Step 2: Unzip the file and burn the ISO to a cd

Sketchup 2018 for mac full crack. Unzip the file using winzip or 7-zip and you will end up with a file called Dell Portable Bios and Diags Rev A34.iso. Use Nero, Roxio, Image Burn (whatever program you might have) to burn the image to a cd.

Step 3: Boot from the cd

Stick the cd in the laptop and turn it on. Hit F12 at the DELL logo and you will get the Preparing one-time boot menu ... choose CD/DVD/CD-RW Drive.

Step 4: Choose a selection

The cd will boot up and give you 4 options to select from. Choose option 3. Run the Service Tag Utility

Step 5: Erase the current service tag

It will come up and warn you that choosing yes will erase the asset, owner and service tag. Luckily we don't use either of the first two fields so I just choose yes and hit enter. If you do use asset and owner info in the BIOS I suggest you write them down first.

Step 6: Enter in the correct Service Tag

It will then erase the incorrect service tag and ask you to enter a new one. Enter in the correct one and hit enter.

Step 7: Verify the Service Tag

It will ask you to verify the service tag. Enter in the correct service tag and hit enter again.

Step 8: Are you Sure?

It will ask you if you are sure you want to change the service tag. Choose yes

Step 9: Operation successful

It should tell you it was successful. Remove the cd and reboot. Your service tag is now changed. I tried rescanning the laptop in spiceworks but alot of the info was still messed up so I deleted and scanned the network.. from there everything was fine.

I hope this comes in handy.

Published: Sep 02, 2010 · Last Updated: Mar 25, 2014

27 Comments

Cayenne
Anthony384 Sep 2, 2010 at 09:18am
Usually the tech that does the replacement updates the bios and the service tag. Nice to have the utility just in case he forgets!
Thanks
Poblano
bradje Sep 5, 2010 at 03:41pm
Nice one mate. Very helpful.
JB
Thai Pepper
Emerson Leal Sep 6, 2010 at 05:32pm
Great research job! Thanks for share.
Jalapeno
BHollinger Jan 24, 2011 at 09:34am
I used this and it made for an easy tag fix.
Tabasco
Kev840 Feb 10, 2011 at 01:53pm
You CAN use the asset utility to change the service tag. It is an undocumented switch. run asset /s SERVICETAG, where SERVICETAG = the service tag you want to enter. Works like a charm on Optiplex & Latitude.
Serrano
John8753 Feb 10, 2011 at 02:18pm
I basically wrote this how to because I could not get the /s to work. The Dell tech had me download a few different versions of asset from their website but that also failed using the /s. This was the only way I was able change the service tag.
Pimiento
johngr8 May 12, 2012 at 02:08am
Hi guys that link above does not work , i need to change the service tag in my laptop , really appreciated
Cheers
john
Pimiento
rendezo Oct 7, 2012 at 03:27pm
Hello,
Please share it again.
Thank You
Anaheim
JFMAN960 Dec 12, 2012 at 10:03pm
With all due respect to John's how-to, the link in that post does not work. I was able to find another link outside the community with an ISO that works for Latitude (I only tried it on D620, D830, and E6400). It does not appear to work for desktops - at least not the GX520 or GX745 models.
Here's the link: http://pcemporium.webs.com/Dell%20Bios%20Reset.iso
I found it under the blog: http://forums.mydigitallife.info/threads/19369-Dell-Bios-Editing-Removing-Bios-Lock-Changing-Service-Asset-Tag-Software-Here
I burned the ISO to CD, booted from same and it worked perfectly.
Serrano
John8753 Jan 25, 2013 at 08:32pm
Thanks JFMAN.. I'd been unable to find a new link but yours works fine :)
Pimiento
darrentownley2004 Nov 25, 2013 at 06:24pm
This does not work for Lattitude e6530. Does anyone know where I can get a newer version?
Pimiento
gtoss Dec 28, 2013 at 12:05am
I can not get it to boot on my laptop
Pimiento
wahiduzzamanwahid Feb 24, 2014 at 08:59am
Hello dear, It is not working for Dell Latitude E5420.
Pimiento
johnnywoodbury Jan 17, 2015 at 03:08am
THANK YOU SO MUCH!!! I had to replace my motherboard and when i did the service tag changed, so my windows was no longer genuine. i did the slmgr -rearm so many times until i couldnt do it anymore, then i thought well maybe i can change the service tag and then i stumbled upon this. I am so happy i had to create a profile to tell you thank you so much!! AWESOME! LIFE SAVER! I nearly paid to get a new product key! JUST AWESOME! saved me 110.00 bucks!
Pimiento
abdelhak2 Nov 18, 2015 at 09:43am
my problem is that i can't boot with cd/dvd , just internal HDD , anyone can help on this one ??

Some multiplayer games that implement the PunkBuster anti cheat system get cheaters off the server using hardware bans. It used to ban the hard disk serial number but no longer does that since there are ways to spoof and temporarily change the so-called hardcoded serial number. So now they’ve started to ban the CD-Key. Other than that, some licensing system also uses the hard disk serial number to generate a unique hardware ID which is then used to generate an external license file to activate the software.

A simple way to find your current hard disk volume serial number is to open a command prompt (Win key+R and type cmd) and then type dir. The second line shows your volume serial number for the system C partition. Type dir [driveletter:] and it will show a different serial number even if the volume is on the same physical hard drive. The volume serial number changes every time you format the partition and Windows also uses this value during activation so you can’t simply move your install from one partition to another. If your Windows has been activated using a product key from a sticker it will probably ask for the key again after a reboot and will need reactivating if you change the volume serial number on the system drive.

If you do a simple search in Google, you’ll find tons of information about to change your hard disk volume serial number, but not the real hard disk serial number that is hard coded into the hardware. Some people said that it is impossible to change it, but we will show you that there are ways to change both volume and hard coded serial numbers for your hard disk.

1. Hard Disk Serial Number Changer

There are a few free tools around capable of changing the volume serial number and one of them is called Hard Disk Serial Number Changer. The name is a bit misleading though as it doesn’t actually change the hard disk serial number but the volume serial number which is different. It works on just about any Windows operating system from 98 onward and is a standalone portable executable but does need to be run as administrator on Vista and 7.

Usage is pretty straightforward and you simply choose your drive from the drop down box, enter the new serial number and click the Change button. Do note the serial number format as mentioned in the window is made up of 8 hex characters from 0-9 and A-F split by a “-” into two groups of 4. You will then need to reboot to commit the changes.

Download Hard Disk Serial Number Changer

2. VolumeID

Another useful tool to change the volume serial number is by Sysinternals called VolumeID. This tool is only usable from the command line so won’t be as quick and easy to use for some people as Hard Disk Serial Number Changer. The command line usage to change the ID of a drive volume/partition is:

volumeid [driveletter:] xxxx-xxxx

The format is again 4 hex characters, a “-” followed by another 4 hex characters. You should shut down all your running applications before using this tool and will need to reboot immediately after the changes if they are being made on an NTFS partition.

Download Sysinternals VolumeID

The tools above are fine for changing the serial number of a volume/partition but trying to change the serial number of the actual hard drive itself is a whole different story. These are hard coded into the hard drive itself and cannot simply be edited or altered using a piece of software. There are however, several tools around that can spoof the hard drive’s built in serial number temporarily which can hopefully fool whatever software you are trying to get round. Unfortunately a lot of these tools aren’t free and some are even approaching $100 to buy.

3. PB DownForce

There is a free tool that’s been around for quite a while called PB DownForce which is able to temporarily spoof your hard drive’s static serial number into a different random or seeded number. There is also an option to set your own predefined serial number although we were unable to get that function to work during testing. To use the program in it’s simplest form, all you have to do is start it up and click on the Start spoofing button. Make sure to run PB DownForce as administrator.

The Advanced options button shows the 3 different types of spoofing to choose, although as mentioned we couldn’t get method 3 to work as intended and it just showed a serial full of a single number. You can easily use the Stop Spoofing button and try another random number. Perform test will quickly tell what drive model name and serial has been given. The image below shows a new serial after using PB DownForce to change a hard disk serial number in the PC Wizard hardware information tool. Do note that some tools such as Speccy will still show the original serial number for the drive because they gather their data in another way, HWInfo does something different again and will show the spoofed drive as another completely new hard drive in its list.

PB DownForce was tested and worked on Windows XP and Windows 7 32-bit although it still was quite random to which machines worked and which showed no change or produced an error. 64-bit Windows is not supported in any free hard drive spoofing tools we came across. The spoofed serial will return to normal after a reboot.

Download PB DownForce

There are several more hard disk serial number Spoofing tools on page 2.

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Nicholas5 months ago

so you mean reboot in restart you computer or reset you whole computer?

Reboot as in restart. As far as I’m aware, reboot your computer has never implied resetting or reinstalling it.

Tamara8 months ago

About PB Downforce,

Well the Windows Service I grabbed turned out to be a .sys file, obfuscated by VMProtect(1.X).
It’s internal name, as Windows Explorer tells me, is: ‘helper.sys’. So, this means it’s a Windows Device Driver, a .sys file.
But that’s food for IDA Pro, when I’ve got the time. :)

Regarding PB Downforce,
The executable drops a service into your %TEMP% folder, which it uses. It’s the temporary folder from Windows.
What I did was, preventing the removal of contents in my %TEMP% folder. Very interesting, now I’ve got the service DLL to tinker around with. Let’s see if that contains a virus. :)
Windows Defender quickly picked the DLL up as ‘ Trojan:Win32/Tiggre!rfn ‘. Could be bad.

HAL9000 Author8 months ago

Windows Defender is well known for false positives. In fact, it’s one of the worst there is.

However, tools like this will generate detections in AV software, it’s unavoidable.

Concerning PB Downforce, I got interested.

Windows operating systems based x64-bit, have KPP (Kernel Patch Protection). So the hooks on DeviceIoControl, which PB Downforce applies, are rendered useless.
If you’re on a 32-bit system, then there’s no problem for you.

Some notable strings in the PB Downforce executable are as follows, after unpacking:
IOCTL_STORAGE_QUERY_PROPERTY
SMART_GET_VERSION
SMART_RCV_DRIVE_DATA
IOCTL_NDIS_QUERY_GLOBAL_STATS
IOCTL_STORAGE_QUERY_PROPERTY
IoBuildDeviceIoControlRequest()
DeviceIoControl()
PhysicalDrive
ServiceName
PBDOWNFORCE_SERVICE

The executable file itself was packed with ASProtect, and was made with Microsoft Visual C++, with its wxWidgets.
The good news is, it does not contain a trojan.

BaDe8 months ago

TROJAN included at your service

Of course there isn’t, try to have a bit of common sense. Antivirus and security software obviously hates programs like these because they are essentially hacking tools.

Rawlings5 months ago

Tried installing it it kept showing me an error dialog box Error:communication failed.
I dont know what next to do.
Please help

PB Downforce is not working on my Windows 10 64-Bit. Please help me. Can I run it in any way?

Markus H11 months ago

whats the password for it BRUHHH

Downloads with a password have it listed on the download page.

Abdulrhman3 years ago

hello raymond !
the Chameleon site not workin’ :(

Chameleon appears to be dead. I guess none of these tools that are currently available work for newer operating systems, sadly.

clint4 years ago

Change Motherboard Serial Number Using

i got bluescreen . everytime i shutdown pc. when using pbdownforce

because is wirus XD

North4 years ago

About PB DownForce.
It is mentioned that It will spoof your hard drive’s serial number but temporarly. So you’ll need to spoof your hard drive’s serial every time you open the game and connect to that certain server you’re banned in order not to get tracked?

Hello,

PB Down Force just made my day….Thanks a lot….You are awesome.

Change Motherboard Serial Number Lenovo

effendi3606 years ago

I’m trying to use PBdownforce on win 7 64 but I’m getting error: “communiction failed”. Any help on this ? Any other tool to spoof hdd serial on win 7 64 ?

As stated in the article PBDownforce doesn’t work on 64-bit Windows, we couldn’t find any free tools that do.

ray5 years ago

PBdownforce asking for password to run.

It’s written clearly on the download page.

Tom6 years ago

Another utility which allows changing of a volume serial number is “MiniTool Partition Wizard”, what’s more it changes the whole 32 bit long serial number, not only the last 16 visible bits (8 characters).

Sorry, my mistake – MiniTool reports Volume ID as a 8 byte (16 characters/64 bit) value, while other programs report only 4 bytes (8 characters/32 bits). Don’t know what is the leading 32 bits, but the last 32 bits is the same as reported by VOL utility.

dragos6 years ago

hello! PB downforce is very useful for me but can you please tell me how to use my own serials and macs? I mean… what is the standard format? because I fill the fields with original and new serial and it doesnt work. Thank you very much!

Thank you very much for the info, I need to change my hardware id….

Amruth10 years ago

Hey

I was struggling to change the volume id but by the help of
Hard Disk Serial Number Changer i was able to change it easily

Thank you ^_^

Change Motherboard Serial Number Windows 10

Hello.
Thank you for this tip that is very good. bravo.
I enjoyed of this program.

sasha11 years ago

COOL!!!

Well, I have been searching for that for a long time. So detailed and you provided a good research you did yourself. lol

I am downloading the PB gui program, hopefully it will work. Thanks

lio11 years ago

Master , Genius
thanks to you I think I could find a way to temporary fix the problem with the local ban in Counter Strike using Pbdownforce.
thanks!

very good one.you changed my view. thanks

hanan12 years ago

very interesting

Thank you for this great tip ;)

Nando Nachi12 years ago

That was a very interesting read, you are simply awesome

Thanks! You can try typing ‘vol’ instead of ‘dir’ to see your volume label or serial number

Ravish12 years ago

I always enjoyed reading your articles…!

Hi, I need a tool to change my hdd serial no. without restarting my pc, Is there any tool avalable for this. If yes please share. Thnaks

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