Can I delete these two partitions?

I've got a 4.5 year old Lenovo Z51. I bought it as Windows 7 machine and upgraded it to W10 about 4 years ago. I'm now on 10.0.18262. About 6 months ago I changed the 1TB HDD for a 500GB SSD.

I've been looking at Disk Manager and noticed two partitions that maybe aren't doing anything. My question is: are there any reasons why I can't delete those 2 partitions and merge them in with the main 450GB storage? They don't seem to show up in Windows Explorer & I'm not consciously using them.

Going from the left hand side in the lower half of the attached screen shot, they are:
Partition 5: 914MB
Partition 6: 12.51 GB

Thanks

Great thanks. Before I go ahead and do it - could there be things in these partitions I'm not aware of? I just want to check I'm safe to go ahead & do it.

Thanks. I've downloaded Easeus Partition Manager. The 12.51GB partition is labelled "PBR_DRV" and around 10GB of the 12.5 GB is used.
From searching, PBR_DRV is used by Lenovo for the One Key Recovery feature, which returns the laptop to its factory settings.
Given that this was Windows 7, with bloatware installed and I didn't even know that I had it, I'm inclined to think that I can live without this - or is there more to it?

Jedzi said:

Thanks. I've downloaded Easeus Partition Manager. The 12.51GB partition is labelled "PBR_DRV" and around 10GB of the 12.5 GB is used.
From searching, PBR_DRV is used by Lenovo for the One Key Recovery feature, which returns the laptop to its factory settings.
Given that this was Windows 7, with bloatware installed and I didn't even know that I had it, I'm inclined to think that I can live without this - or is there more to it?

Nope, that is all there is to it!

There is also a RAW volume G:

What was previously in G: before it became raw? Anything important?

Open administrative command prompt and type or copy and paste: (all at one time)

Code:

bcdedit /enum all
reagentc /info
diskpart
lis dis
lis vol
sel dis 0
det dis
lis par
sel par1
det par
sel par 2
det par
sel par 3
det par
sel par 4
det par
sel par 5
det par
sel par 6
det par
sel par 7 
det par
sel par 8
det par

When these have completed > right click on the top bar or title bar of the administrative command prompt box > left click on edit then select all > right click on the top bar again > left click on edit then copy > paste into the thread

Probably the lenovo recovery image, which can be used to install win7 and activation. You never know, you might want to at some point. I would copy it to an external disk for safekeeping.

Jedzi said:

Thanks. I've downloaded Easeus Partition Manager. The 12.51GB partition is labelled "PBR_DRV" and around 10GB of the 12.5 GB is used.
From searching, PBR_DRV is used by Lenovo for the One Key Recovery feature, which returns the laptop to its factory settings.
Given that this was Windows 7, with bloatware installed and I didn't even know that I had it, I'm inclined to think that I can live without this - or is there more to it?