I attempted to start Windows on my HP Pavillion DV7 and receive a message that system and registry files are corrupt. A start with Last known Good start does not work and the system progresses to Startup Repair. This runs for an hour and reboots and everything starts again. If I interrupt the startup with F8 and select a start with DOS prompt, this ignored and reverts to safe mode Startuprepair. I just finally got a DOS prompt and typed in rstrui.exe. I received messg that "No Restore Points have been created on your computer's system" I know this is not correct because I create weekly restore points in addition to those created every time before software of updates are installed. I'm tearing my hair out! Helpppppppppppppppp

It is a wide guess, but it might be that disk corruption causes all the issues you describe. You can use chkdsk from recovery console to check for and repair errors.MCP/MCSA/MCTS/MCITP

Thanks for the info. I have run Chkdsk from both Autorepair and manually from the DOS prompt. Each check found no error. I have also run diags on the partitions and those tests did not display any errors. I don't want to have to do a complete restore from the recovery disks unless I absolutely have to because I have data I don't want to lose and software that will need to be reinstalled. Any other suggestions would be very much appreciated.D Robinson

Hi, I suspect your boot configuration is corrupted. Please access Windows Recovery console, open commend prompt, type the following commands. Bcdedit /export C:\BCD_Backup ren c:\boot\bcd bcd.old Bootrec /rebuildbcd More information http://support.microsoft.com/kb/927392 Best Regards, Niki Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hi Nikki Found the following instructions on another tech site and followed them: 1. I opened the windows 7 DVD installation on boot (just put your DVD installation on drive, usually your computer is configured to access dvd drive first, if not, you should go to setup bios, look on internet how to do it) 2. I acessed the repair tool 3.I chose the Command Line (DOS). 4. on Command Line, my windows folder was in D:, so i typed 'D:' . (Usually is 'c:') 5. I acessed the folder with the files that I should substitute D:\Windows\System32\Config. To do that, I typed 'cd windows', then 'cd system32', then 'cd config' 6. I typed 'dir' to see the files. There were 5 files with the termination .gbck, and 5 files without any termination. They were the following files: DEFAULT, SAM, SECURITY, SOFTWARE and SYSTEM. 7. I renamed all the files without termination to .bak . One by one. just like that: 'ren COMPONENTS COMPONENTS.bak' (you should do it for the others 4 files) 8. I renamed all the .gbck to without termination. One by one. just like that: 'ren COMPONENTS.gbck COMPONENTS' (you should do it for the others 4 files) 9. I typed 'dir', to see if the files names were exactly I was expecting to. 10. I booted the pc, and voilá, it worked just fine. that's all. It worked an absolute treat exactly as described. I really hope all the others out in the big tech world find this fix as useful as I did. Best wishes DavidD Robinson