Hello @zyul
Welcome to the HP Support forum.
If you need to perform recovery and to restore back your PC to factory default settings, there is no ay to restore your recovery partition or recovery discs.
However, you can use original HP Recovery discs which will perform the recovery and restore your Windows to factory default. This is the official process.
You can purchase recovery media from this 3rd party reseller >> http://www.computersurgeons.com/p-18155-windows-7-premium-64-bit-94nav6pra1-recovery-kit-gv405av-for...
Once you receive the recovery set, boot from the 1st disc. Here are detailed instructions >> http://hp.dezide.com/ts/start.jsp?guide=HPSystemRecovery.net§ion=ccweb&SFS=tdoc&language=english...
Hope this answers your query. Let me know if you face difficulties.
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