Partition issues
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Moi
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gugu01 Posted messages 15669 Registration date Status Contributeur Last intervention -
gugu01 Posted messages 15669 Registration date Status Contributeur Last intervention -
Hello,
having purchased a new computer built by myself, I installed a new 4TB drive, the problem is that it is in MBR and not in GPT. Having already gone through forums to find out how to proceed, either through the disk manager, everything remains greyed out, or through DiskPart which tells me "Clean is not allowed on the disk containing the active boot, system, page file, crash dump, or hibernation volume."
I find myself stuck with a 2TB disk that is actually 4TB. Any ideas?
having purchased a new computer built by myself, I installed a new 4TB drive, the problem is that it is in MBR and not in GPT. Having already gone through forums to find out how to proceed, either through the disk manager, everything remains greyed out, or through DiskPart which tells me "Clean is not allowed on the disk containing the active boot, system, page file, crash dump, or hibernation volume."
I find myself stuck with a 2TB disk that is actually 4TB. Any ideas?
6 réponses
Hello,
New, nothing on it otherwise, copy your data aside and start from scratch.
Basically:
> UEFI mode (just that, nothing else, no legacy or anything)
> Reinstall if the disk where Windows is also in MBR
(4 TB HDD disconnected beforehand)
You start with a "custom" installation
You will follow the procedure and when you reach a table that lists the locations and asks you "where to install Windows".
At that moment:
Press the Shift and F10 keys
(the command prompt opens)
Enter the following commands one by one, confirming with enter:
diskpart
list disk
sel disk X (x should be replaced with the number corresponding to the hard drive you want to erase)
clean
convert gpt
exit
exit
Result -
In short, we empty the disk, convert it to GPT and then you return to the installation table.
You will only have one volume that you choose to install on.
> Once correctly installed, reconnect the 4 TB data disk
Open a command prompt (admin)
(= powershell admin, which you can access by right-clicking the start menu)
And redo the same commands given previously.
(of course, pay attention to the correct number, it's no longer the same disk we're touching)
----------
I almost forgot, your 4 TB once converted to GPT will likely not be visible, only present in disk management.
Just right-click on the graphical volume and choose "create simple volume"
And that's it, it will be visible.
After that, you can create as many partitions as you want... 1 or 2 or 50.
Auto message
If you are here, it means you don’t know, so... ;-)
Mini note regarding the volunteers who help you: Reply, Respect, Politeness,...
New, nothing on it otherwise, copy your data aside and start from scratch.
Basically:
> UEFI mode (just that, nothing else, no legacy or anything)
> Reinstall if the disk where Windows is also in MBR
(4 TB HDD disconnected beforehand)
You start with a "custom" installation
You will follow the procedure and when you reach a table that lists the locations and asks you "where to install Windows".
At that moment:
Press the Shift and F10 keys
(the command prompt opens)
Enter the following commands one by one, confirming with enter:
diskpart
list disk
sel disk X (x should be replaced with the number corresponding to the hard drive you want to erase)
clean
convert gpt
exit
exit
Result -
In short, we empty the disk, convert it to GPT and then you return to the installation table.
You will only have one volume that you choose to install on.
> Once correctly installed, reconnect the 4 TB data disk
Open a command prompt (admin)
(= powershell admin, which you can access by right-clicking the start menu)
And redo the same commands given previously.
(of course, pay attention to the correct number, it's no longer the same disk we're touching)
----------
I almost forgot, your 4 TB once converted to GPT will likely not be visible, only present in disk management.
Just right-click on the graphical volume and choose "create simple volume"
And that's it, it will be visible.
After that, you can create as many partitions as you want... 1 or 2 or 50.
Auto message
If you are here, it means you don’t know, so... ;-)
Mini note regarding the volunteers who help you: Reply, Respect, Politeness,...
It’s true that if it’s a new system, you might as well do everything properly...
You’re absolutely right, it’s always better than a “hack” post-installation ;-)
See you!
(only if everything is fine, remember to mark the topic as resolved, thank you)