What he said...!!
Keep in mind, if the HP Recovery Manager app can't find your built in Recovery partition, you may have inadvertently destroyed it by using various partition tools such as Partition Magic, Disk Management(Windows utility), or another 3rd party partitioning tool .
You didn't mention doing this specifically, but if you didn't do this intentionally, there's a good chance your hard drive has failed if you can't get to that HP factory recovery partition. Also, if you got a nasty virus in there, they often disable factory Media Creator programs intentionally so that you
CAN'T run the program to create the Recovery Media. The time to 'make these discs or usb is when the computer is first opened from the box when it is brand new, not later when a catastrophe occurs. You can run your antivirus and scan/remove all viruses found, and then download the free
MALWAREBYTES antispyware program from Malwarebytes.org to scan/remove all spyware viruses found. This may fix the problem with your HP Recovery Manager, but usually not. The other problem you may have is faulty hardware such as a failed hard drive (very likely given that you can't access that part of your hard drive). You can test your hard drive using these instructions here:
Link Removed. If the diagnostic for your brand drive returns any errors it has failed and must be replaced!
Of course, once you replace the hard drive, all the factory recovery software goes out the window and you have to do a complete windows reinstallation from generic Microsoft Media, as mentioned, using the MCT tool from Microsoft.
A better way to do it is to contact HP either by phone or visit their website and order factory Recovery Media for your exact model HP computer. Cost is
$29-$99 US and will arrive in 1-3 weeks on DVD or USB media. This will restore or rollback your computer to it's original condition when it left the factory. Once done, you of course will have to reinstall
ALL your programs, and hopefully, you have your data backed up somewhere other than on that computer to external media or a Cloud account such as OneDrive, Dropbox, or GoogleDrive.
Good luck,
<<<BIGBEARJEDI>>>