No EFI system partition

[sczze]

I bought a new ssd (disk 0), installed and successfully booted windows on it using Windows installation media on a USB. It does not have EFI system partition/recovery partition/oem partition. Does windows not need these partitions to function?

 

Disk 1 is the ssd that came with the laptop, i assume that the efi system and recovery partition are created by the manufacturer, but why are they 100% free?

 

[da na]

EDIT:

I was wrong, it does need those. 

[WhitetailAni]

8 minutes ago, Mel0nMan said:

Doesn't 100% need those. Your computer just must not use them much and that's why they're empty

Uhhhhh...

The EFI and Recovery partitions are 100% necessary to boot.

The EFI partition contains your bootloader.

 

OP, you do need those partitions. They're currently on your old 250GB drive though so you'll need to:
A. Manually add them (a pain)
B. Disconnect all but your new drive and reinstall Windows

[da na]

3 minutes ago, FakeKGB said:

Uhhhhh...

The EFI and Recovery partitions are 100% necessary to boot.

The EFI partition contains your bootloader.

 

OP, you do need those partitions. They're currently on your old 250GB drive though so you'll need to:
A. Manually add them (a pain)
B. Disconnect all but your new drive and reinstall Windows

My bad.

Yeah it must just be booting from the old one's partition

[svmlegacy]

Windows does NOT need the EFI partition if installed under legacy BIOS.

 

However, I highly reccomend reinstalling under UEFI if your system is capable of that, as it's much easier to do it now than later.

[sczze]

36 minutes ago, FakeKGB said:

Uhhhhh...

The EFI and Recovery partitions are 100% necessary to boot.

The EFI partition contains your bootloader.

 

OP, you do need those partitions. They're currently on your old 250GB drive though so you'll need to:
A. Manually add them (a pain)
B. Disconnect all but your new drive and reinstall Windows

do I need to do A (manually add them), or does disconnecting other drives and reinstalling allow the windows installer to make the partition by itself?

[WhitetailAni]

1 minute ago, sczze said:

do I need to do A (manually add them), or does disconnecting other drives and reinstalling allow the windows installer to make the partition by itself?

If you don't want to reinstall you can do A, but I recommend B as it's a lot easier.
Make sure to completely wipe your new drive though.

[sczze]

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