The system was found to be slow, so I planned to reinstall the OS, I got the original recovery media discs from HP. I followed the standard procedures. The factory image recovery preparations tab showed three options 1) Reformatting the windows partition of the hard drive. 2) Copying files required to restore the hard drive. 3) Restoring files to the hard drive.
Initially while inserting the first disc it went smoothly upto 19% of progress and showed error names copy file fails. I repeated the process continuosly by restarting the pc. The error solved temporarily. It asked to insert the 2nd disc. Later the same problem arrived at 47% of progress. Pls suggest a suitable way to install the OS.