Windows 10: Cannot find OS partitions for disk 0

I have been trying to change from legacy to UEFI type BIOS, the first step it to change my SSDWD Black SN850 M.2 NVMe SSD 2TB from MBT to GPT. But when i do so i get this error message: C:\WINDOWS\system32>mbr2gpt /validate /disk:0 /allowFullOS MBR2GPT: Attempting to validate disk 0 MBR2GPT: Retrieving layout of disk MBR2GPT: Validating layout, disk sector size is: 512 bytes Cannot find OS partitions for disk 0I am not allowed to add images, so here is the imgur link to how my disks are partiotioned https://imgur.com/a/fUWN8FGTell me if i need to add more information:

:)

 

W7 Hard drive partition issue

to get rid of that 100 meg windows partition that setup creates for you on a new install on a blank hdd:

- press shift+f10 when on the partition management screen in setup <-- this opens a command prompt
- diskpart <-- start the windows command line partition management tool
- list disk <--- list the installed hdds in this computer for the next step
- select disk 0 <- might have to replace 0 with the number of the correct disk
- clean <-- this will erase all data on the disk you selected one step up- dont use the wrong disk!
- create partition primary <- creates a primary partition taking up all space on the drive, adjust the command if necessary
- exit, exit to exit diskpart and the command prompt
- click refresh in partition manager and select your newly created partition and install to that

 

Installing WIn10 on machine with no OS. Issues with partition creation

Hello,

I have a Lenovo 5-15ARH05. It came with no OS installed. When I try to create a partition it simply won't show. If I manually create a partition, and follow the required steps (below), it will delete some file that came from manufacturer.
Is that safe?

"This partition might contain files or applications from your computer manufacturer..."

1. list disk (and make note of the disk number to install Windows to)
2. select disk=0 (where disk 0 is your destination drive, so be careful, all information on this drive will be removed)
3. clean
4. convert mbr
5. create partition primary size=xxx (where xxx – is the size of new partition)
6. select partition=1
7. active
8. format fs=ntfs quick
9. assign
10. exit

 

System Reserved Partition on Disk 1 not Disk 0

The results were the same as before: Windows is installed in a single 477 GB partition on Disk 0 and the System Reserved is in a 500 MB partition on Drive 1. The rest of Drive 1 is unallocated. This is identical to the configuration I had when I asked the
question.

The Media Creation Tool used to created the install ISO DVD is v. 10.0.14393 downloaded on 12/13/2016.

I followed your instructions:

• I selected Drive 0 and deleted the existing Windows partition.
• I clicked New and Apply. Windows then formatted Drive 0 as a single primary partition.
• The existing System Reserved partition was still on Drive 1.
• So I deleted the System Reserved partition on Drive 1 and the just created Primary partition on Drive 0
• I then selected Drive 0 and clicked New and Apply again. Same result a single Primary partition on Drive 0. Drive 1 was left unallocated.
• Upon completion of the install
  • Windows occupies about 15 GB in the only partition on Drive 0
  • The 500 MB System Reserved partition was placed on Drive 1
  • The rest of Drive 1 is unallocated.

How can I get the System Reserved partition to be placed as the Partition 1 on Drive 0 with Windows installed in Partition 2?

Thanks.

Bill