Hi
You can recover back your system to its original state, if you want, by typing in the search for "HP Recovery Manager" & running this application. Just follow the instructions given to you by the HPRecovery Manager but DO NOT STOP or interrupt its operation. Furthermore, you can choose from the options whether to go for full system recovery or doing a recovery of the system while saving your own made work/records. Please note, you will have to reinstall back any programs that were added/installed by you (Meaning: not part of prebuilt system).
I hope the above answer your questiion.