From the given info there are two possibilities.
1. Either the Recovery partition has been deleted in part /wholly by mistake or got corrupted somehow - (You can purchase Recovery Discs, borrow from a friend who also owns an Acer Extensa 5630 or just obtaine a copy of a Windows OS similar to the one you used).
2. On the other hand, the hard drive may be failing - which would explain why you had issues that resulted in your considering to Restore Factory Defaults or repairs (You will need to replace the hard drive and then try and obtain an Operating System in one of the three ways mentioned above).
Further comments under this question are welcome.