Windows 7 - HDDRECOVERY missing error

Firstly apologies at my ignorance please.
I have a toshiba notebook running windows 7 64-bit.
I am unable to do backup or set restore point because I get a HDDRECOVERY missing error message. If I go into disk management it sees 3 partitions 2 small with no drive letter and the regular c drive. I can't put a letter to the small ones. I don't know how to put the image from print screen in my post sorry but can email if required.

thanks in advance
Kebeni

Can you post a screen shot of Disk management?
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thanks, have edited above and put screen shot but it is small

Looks like,The files in Partition 3, have been deleted.

Try adding a drive letter to partition 3 only:
Hard Disk Partition Letter Missing in Windows 7 - Fix

thanks but I tried that and when I right click it doesn't give the option to add drive letter. It comes up highlighted for the c drive but not the other two

I have a vague feeling that the partition table may be corrupted but I shall wait for the other experts here to analyse the issue and give their opinion.

Open a command prompt.
Elevated Command Prompt
Type in command line
diskpart
list disk
select disk 0 (Win HD)
list partition
select partition # (the partition with no drive letter)
detail partition
post screenshot

here is the screen shot

Please post larger screenshots!! They are to small to read
please read post #7 from @theog
what "type" is partition 0, 1 and 2?
which one is active? what's the label of partition 0, 1 and 2?

I think one small partition is called HDDRECOVERY and type 27 (ntfs hidden)
Another small one is "System reserved" and is your Windows 7 boot partition, so it's active. What's the type?

partition 3 is type 17! is this normal.. don't think so
Partition types: List of partition identifiers for PCs
TYPE 17 PARTITION- how to fix???

diskpart
select disk 0
sel part 3
set id=07
exit

now reboot and try to assign a driveletter. If errors/not working. set id back to 17, maybe this is normal but I don't think so