Have a question about Windows 10? Ask the experts on the Microsoft Tech Community: techcommunity.microsoft.com/t5/Windows-10/ct-p/Windows10 And to find even more information on the MBR2GPT disk conversion tool, check out this link: aka.ms/Mbr2Gpt
@jeremytaylor8919 Жыл бұрын
This guy deserves a medal 🥇. Can't believe this isn't the first search result for fixing this issue. Worked like a charm
@MSFTMechanics Жыл бұрын
Agreed. Glad it helped!
@ashish9urun9 Жыл бұрын
True. After couple of days i am finally able to solve this issue.
@SirSoffrito3 жыл бұрын
It took me longer to create the windows PE bootable usb than it did to run the mbr2gpt tool. I was like, "no way its done that fast." Swapped my wife's motherboard over to UEFI mode and boom, booted right up to Windows 10. Everything validated in both SystemInfo and by PC Health Check tool. Plus, I kinda like this guy. He's clearly an engineer and not an actor. Straight to the point. The muzak is perfect. This video is gold and has saved my live. This is my first introduction to this channel. I think I"ll subscribe for content like this.
@kingzach74 Жыл бұрын
How did you create the Windows PE bootable and or where did you find the download?
@InklanUtterfield6 жыл бұрын
He's staring into my soul.
@jan_h7 жыл бұрын
Wow! That's really cool. I accidentally installed Windows with MBR and it was a hassle to get it to use GPT. I don't have that machine anymore, but I wish I had this feature back then.
@Gender19795 жыл бұрын
i like this guy he gets to the point
@panagiotis31833 жыл бұрын
It was really helpful, thnak you. I converted it while I was already running Windows 10 OS. I just wanted to convert it without losing data or format my PC. Also an action that disables CSM from BIOS helped me to switch to UEFI from Legacy and now I'm able to run Windows 11 installation.
@MSFTMechanics3 жыл бұрын
Happy to help
@chocosek3 жыл бұрын
I know this video is old but it saved me a lot of time. I was already willing to wipe my hard drive and reinstall whole windows and recover from backup. Thank you so much 😊
@sovereign11602 жыл бұрын
Thank you for making a video that is no nonsense and straight to the point with clear instructions and relevant graphics.
@DenisDamulira234 жыл бұрын
Wasted a whole day and this gave me the answer in a few min.Thx
@Gr8Dane787 жыл бұрын
Looks like a great way to finally convert my Win10 machine (which was in-place upgraded from Win7) to UEFI boot mode. Thanks for creating a tool that makes it easy.
@wayneosman89712 жыл бұрын
It is now November 2021 almost five full years since you made it, without a doubt the best tutorial I've seen, used and continue to. Thank you. P.S I "Subscribed", clicked the "Bell", choosing "All" your videos
@mateofantasma4 жыл бұрын
Thank you for this video. You saved me like 40usd in software and/or a few hours of work. I used your tips to convert my OS disk on Win 10 and worked like a charm. Much appreciated!
@johnrieley14044 жыл бұрын
Great my friend, excellent presentation. Was ready to buy third party partitioning tool to do the conversion from MBR to UEFI on a refurbished OptiPlex before finding your video. Thanks much.
@robd993 жыл бұрын
Thanks a billion. All over the net there are (usually companies trying to sell you their sw) saying you CANNOT convert a drive with partitions / data between GPT and MBR. Just worked fine to get me out of a fix restoring an old MBR image to a new GPT /UEFI computer.
@VarunKumar-oz2uj7 жыл бұрын
Thank You very much for the clear instructions on converting partition styles. I was about to reinstall Windows as I've already backed up my data. This has made the process so much easier. Thank you once again.
@adeo12317 жыл бұрын
This saved me a LOT of time, thank you.
@clestra.5 жыл бұрын
+Microsoft Mechanics Mr. Desmond Lee, thank you sir so much for such a clear explanation of this wonderful & free tool. This saved me a lot of trouble; I greatly appreciate it.
@meditatingstuff6 жыл бұрын
Worked for me with "mbr2gpt /convert /disk:1 /allowFullOS (after /validate disk number). Thanx a lot!
@lFURTIVOl6 жыл бұрын
thanks a lot, I was about to lost 1 TB of data using the others methods, until I found this video and finally I was able to reinstall Windows.
@WastedMoment28 күн бұрын
Works perfect on a virtualized Server 2019. I did get a message after booting up that I needed to reboot OS to repair disk. It repaired super fast, and I have no experienced any issues at all. Make sure to change BIOS to EFI (vsphere edit vm settings > VM options > Boot options > change firmware to EFI, and enable Secure boot).
@johnrdykstra3 жыл бұрын
Perfect. I kept finding conflicting information about data loss with MBR2GPT. This gave me the confidence to try it and it worked. Besides, this actually fixes the UEFI booting problems with a new Dell laptop.
@MP-wb5yd3 жыл бұрын
Quite amazing tool, video and step by step process, thank you for that !
@Spice50002 жыл бұрын
Absolute godsend of a video now that I have to convert my SSD to upgrade to Windows 11. This guy get's straight to the point and everything is visualized in a great way. All thumbs up!
@MSFTMechanics2 жыл бұрын
Thanks
@drwhave10 ай бұрын
this video saved my Friday evening troubleshooting
@Veto20904 жыл бұрын
Thanks man. Just got an extra 2tb from my 4tb hard drive because of this!
@NEROGIL17 жыл бұрын
That tool is so awesome! Works perfectly. love you Microsoft
@Shrek_Boi51553 жыл бұрын
Thanks you. This fixed my issue. I was able to enable secure boot in the bios and now my pc is compatible with the windows 11 update
@YoloMerra4 жыл бұрын
Of all the videos I watched this one actually worked.
@rapatouille2 жыл бұрын
glad i found this before pulling the trigger to repartition and reinstall windows!
@noicerone3 жыл бұрын
Whoa ahead of time!!!
@rodryguezzz7 жыл бұрын
This is very useful. It was quite complicated to convert MBR to GPT without formatting the disk.
@CrossedSabresCOD7 жыл бұрын
Wow, this works! Thank you so much. My boot up time is like 5 seconds now.
@YAUUN2 жыл бұрын
Thanks! clear, straight to the point and understandable enough for an enthusiast like me, even though its aimed at professionals.
@AlexChama4 жыл бұрын
EXTREMELY helpful! Thank you!
@TheRancher0326 күн бұрын
Work perfectly. The mbr2gpt validate did fail due to 4 partitions but just offloaded-deleted a partition and reloaded after the successfully converting..
@bobwallett2 жыл бұрын
makes something that sounds really complicated to a real easy fix. cheers
@tomthumb03 ай бұрын
Thanks for explaining it so well. Here's my issue: I am trying to convert my primary drive with the OS on it from MBR to GPT (NVMe drive). It has another partition on it that stores my programs. No matter what I try, I cannot convert my OS drive to GPT. What needs to be done in order to be successful? Am I going to have to make a back up of sorts for the programs or move them to the main OS drive, remove the partition, and then try mbr2gpt again or is there a workaround for this?
@tothbalint16 жыл бұрын
You are an absolute lifesaver It worked like charm Very easy and understandable explanation, no need to be a hacker to do it Thank you so much
@sarys735 ай бұрын
Sir you are a gentleman and a scholar.
@Blacksadify4 жыл бұрын
Came here for the great info. Stayed for the sense of humor.
@66777jason3 жыл бұрын
No way it was that easy 🤦♂️ I formatted my drive and it still didn't work until I tried this. You don't even need to leave Windows 10 for it to work, you can run it within the OS and just reboot into bios, enable UEFI and thats it.
@spywhale5 ай бұрын
There is so much info here.will have to watch this vid many times
@MrRavenArrowz4 ай бұрын
You just saved me a lot of trouble. Now I don't have to reformat my entire PC. I'm preparing my Win 10 PC for Upgrading to Win 11.
@TurielTyrael44-bf1ld6zu6s4 ай бұрын
Microsoft please keep the same quality this video has as your company motto for coming years 💙💙
@AnimozPC5 жыл бұрын
Wow - that was awesome! So fast and easy - thanks a lot!
@MiniReyux2 ай бұрын
What a great video!! It was so helpful thank youuuu!!!
@fpedroza7 жыл бұрын
It worked for me, thanks!
@TheStevenWhiting25 күн бұрын
2:39 If you're getting Failed to retrieve geometry for disk -1 then you maybe scanning the USB instead of the drive you want. Just do: diskpart list disk Then work out which one is your boot disk. Then exit Then mbr2gpt /disk:0 /validate In my case it kept trying to validate the USB stick instead of the system drive so you tell it which drive to check with the disk:0 bit as my system drive is disk 0 You also want to point to it in the convert so mbr2gpt /disk:0 /convert
@Seanmm88556 жыл бұрын
Hello im not that tech savvy ..windows pe ...is this already on my pc or do i need a windows boot disc to get to it
@MSFTMechanics6 жыл бұрын
Windows PE is actually the environment where Windows setup runs, so if you have a Windows install disk, that works.
@DogeCharger2 жыл бұрын
Absolute Legend, thanks for this!
@BorisWine7 жыл бұрын
C:\WINDOWS\system32>mbr2gpt /validate /allowFullOS MBR2GPT: Attempting to validate disk 0 MBR2GPT: Retrieving layout of disk MBR2GPT: Validating layout, disk sector size is: 512 bytes Cannot find OS partition(s) for disk any ideas?
@BorisWine7 жыл бұрын
ok, found the solution: Create A New Recovery Partition Note: here we take Windows 8 for example. Step 1: Download your Windows ISO directly from Microsoft, which will require your product key to install. (Note: In many cases, this is included with your Windows computer.) Step 2: Use Microsoft’s tool to create installation media for Windows. Step 3: Look for the Sources folder, where you’ll find install.esd. This is the recovery partition, basically, but in its current state it is useless. To make it work for you, you have to first move it from the ISO or DVD to a location on your hard disk. Next, you need to convert it from install.esd to install.wim via some converters like WimConverter tool, and then copy the install.wim file to a new folder on your C:\ drive, labeled C:\Win81-Recovery. The next stage is to register the file so that Windows knows it is there and can create a recovery drive. Step 4: Right-click the Windows Start screen button and select Command Prompt (Admin) on the desktop. Next, in the command line, enter: REAGENTC /SetOSImage /Path C:\Win81-Recovery\INSTALL.WIM /Index 1 Tip: This will register the INSTALL.WIM file as your PC’s recovery image. Step 5: Type: REAGENTC /Info. Step 6: Type: exit.
@tanwenjie78576 жыл бұрын
Thanks so much dude really saved so much of my time.
@augustogalvao26612 жыл бұрын
Everything worked out very fine! Thank you so much!!
@MSFTMechanics2 жыл бұрын
Great to hear!
@pl4free Жыл бұрын
This still works. Thank you a lot 😄
@MSFTMechanics Жыл бұрын
You're welcome!
@Daumex6 жыл бұрын
Can this be done from booted OS or do i have to restart and use recovery mode in Win10?
@prewinder2 жыл бұрын
Perfect. One command and it worked.
@LellePrinter822 жыл бұрын
Thanks for a great video and straight on the subject. One of my storage drives in my workstation (2tb) are almost full and are an MBR-partition. If I want to clone the disk to a larger harddrive, I must first convert with mbr2gpt then clone it to a new 6tb drive (as mbr only works up to 2tb and u need gpt for larger drives). Can I do this without data loss?
@KINGFLXАй бұрын
/Validate works fine. /Convert it says Cannot find room for the EFI system partition (I have 130GB free on C:) I have tried some unallocated space and tried to convert that into EFI & NTFS & New Volume & left it blank. Tried in windows PE environment & disabling reagentc. Layout is: System reserved - C: - Recovery (3 or less as required) I have asked ChatGPT Google watched ITArmy on KZbin I still cannot get this to work out and I don't know why. 🤯🤔🤨🤬
@matthewharck-turner2752 жыл бұрын
Legend!! You saved me a couple of hours
@alexsmits19607 жыл бұрын
i was looking for this!thanks!
@lahmyaj4 жыл бұрын
I like the cut of this bloke's jib. Subscribed 👍🏻
@mohitsingh19_305 жыл бұрын
if my windows was on legacy mode then can i change it to UEFI?
@cyndinn2 жыл бұрын
When I tried to convert, it didn't select disk 0, it had displayed disk 1 and then said OS partition is not found
@FRAMANDUDE3 жыл бұрын
Am I the only one to notice the date of 2017 and it saying "Prepare for Windows 11". I know it was probably changed afterwards, but got me confused for a bit
@MSFTMechanics3 жыл бұрын
We added that to help with preparing for Windows 11, as it requires UEFI and GPT partitioning
@eddiejackson42277 жыл бұрын
One of the best videos. Thanks!
@Schnitzer325ci6 жыл бұрын
Excellent. Thank you so much!
@HienMayCNC3 ай бұрын
so microsoft was planning windows 11 before windows 7 even expired?
@udapangamek Жыл бұрын
in any different cases, donot change to gpt scheme before making sure our bios and motherboard pc support uefi system ,specially old notebook ect .. make sure backup our data first before run any effort
@عزالدينمسلم-و6ش5 жыл бұрын
why this message show for me and failed >>> Disk layout validation failed for disk 0 , plz tell me
@htothearris Жыл бұрын
I first was getting permanent errors. My bad, needed to run as Admin. It took a bit at "trying to shrink the system partition" but when i checked back it was finished. probaply 1minute max. Very easy understandable tutorial, could improve in saying to run as Admin. else it helped me alot to finally be able to get windows 11
@5LVRR5 ай бұрын
The validate command results in “cannot find os partition(s) for disk 0” any idea why?
@sukradi18 күн бұрын
At present I run Windows 10 in MBR. In my PC in the BIOS setup menu, I do not have UEFI option at all. How do I go about? My plan is to install Windows 11.
@MadlockFreak3 ай бұрын
Good lord, I was gonna buy a whole new rig if it wasn't for this video.
@kitpalencar51654 ай бұрын
This guy is a fucking G bro I love how it's just no bullshit.
@rheinmetallskorpions37376 жыл бұрын
Thank you for the information but I have encountered a problem while converting. The error code: 0x00003687 occurred while trying “creating the EFI system partition”. My system disk has 115 GB of free space when attempting. Please help me find out how to solve this problem. Thanks
@mAX-ls5uh2 жыл бұрын
i love you guys great work perfect exoplanation
@janovitz44782 ай бұрын
Thank you, you saved my life!
@ilikeegg518 Жыл бұрын
Hi, for me when i tried to convert, it kept saying "Cannot find OS partition(s) for disk 0" please help
@none16157 жыл бұрын
I was thinking that would avoid getting infected by ransomware attacks as they modify MBR , however looks to me it's not the case , even you have UEFI you are still exposed to ransomware like recent Petya ... Correct ?
@timmywil2 жыл бұрын
Incredible. Thank you!
@HienMayCNC3 ай бұрын
bruh, man you leaked windows 11 4 years before its release, you literally mentioned it in the title of the video!
@antoniocasillas5697 жыл бұрын
How do you remove the existing bitlocker protectors and recreate them?
@advert253 жыл бұрын
Solid tutorial. THANK YOU
@D4rkNFS2 жыл бұрын
it is possible to convert mbr to gpt disk which i am using windows 8.1. But i am using mbr2gpt in WinPE 1709?
@jesusangelaguinaga40442 жыл бұрын
It worked!!! Awesome!!!
@mostafashebl86704 жыл бұрын
Where can i find that tool please?
@MSFTMechanics4 жыл бұрын
It's built into Windows 10. Look in "C:\Windows\system32"
@axiomteck7 жыл бұрын
Great video Love it best explained
@MinHinProm4 жыл бұрын
Thank you. Very useful
@robertferguson78047 жыл бұрын
I need to integrate this tool into an SCCM task sequence that can perform the conversion on BIOS systems if need be. Not in-place upgrade, but an SCCM OSD task sequence that can handle bare metal AND "refresh". Can you help me Mr. Lee?
@adamdelay2874 Жыл бұрын
MBR2GPT doesn't appear to load after clicking to open it - any idea why?
@davidjohansson14163 жыл бұрын
Very nice! Thanks.
@muhammadhashir71585 жыл бұрын
What will happen if power supply to PC go off during this process?
@parama_016 жыл бұрын
So, can I do this with a Windows 10 1803 bootable USB? And at the end of the process, would 'Windows Boot Manager' appear as a boot entry? Thanks.
@JasvinderSG7 жыл бұрын
its works without any issue using WinPE
@mmysck43533 жыл бұрын
Amazing tool. Amazing video. 👍
@ChandanKumar-im4ed7 жыл бұрын
can I change MBR to GPT Windows 7 without upgrade to Windows 10
@MSFTMechanics7 жыл бұрын
Yes, you can change MBR to GPT in Windows 7. Check out this link for more details: technet.microsoft.com/en-us/library/cc725671(v=ws.11).aspx
@edubzpleeАй бұрын
When in Windows PE mode and I am validating the disk, I receive this message "disk layout validation failed for disk 0". Not sure what to do on this part. Is there a fix? I have the latest Windows 10 version and the disk is a Samsung SSD 980 PRO 2TB with 2 partitions.
@MSFTMechanicsАй бұрын
It sounds like your partitions could not be resized to free up space for GPT partitioning. It could be file encryption related. Are you able to resize/shrink your primary partition with volume C?
@HirXeBomb7 жыл бұрын
Hi, before I try anything I want to know if this would work for my old Dell Inspiron 620. The motherboard bios (version A10) has no option to switch between Legacy and UEFI and in the system details the Bios Mode is set on "Legacy" and Secure Boot State is set on "Unsupported". I want to change it to UEFI because I want to install my RX 560 but win 10 64bit won't start up, and from what I read and see on videos I need to change it to UEFI. So if this is possible with an old Dell computer from 2011, let me know, thank you in advance :)
@HirXeBomb7 жыл бұрын
Nevermind I got told and I quote: "Go to your BIOS settings and go to boot devices and see if it has "CSM" or "Compatibility Support Module" If that setting exists, your Mobo supports UEFI otherwise it doesn't"
@IngramMicro-jw4vq Жыл бұрын
thx, great video, to the point and . . this works !!