HDDRECOVERY occupies 12gb of my hard disk space

Solution
It contains the operating system and program files required to restore your hard drive to its original factory state. If you decide that you don't want that feature, you can delete the partition when reinstalling windows.
It contains the operating system and program files required to restore your hard drive to its original factory state. If you decide that you don't want that feature, you can delete the partition when reinstalling windows.
 
Solution