if you have run those already, then we may be seeing the results of so-called registry cleaning and optimisation.
What I would do at this stage, a multiple step process.
1] Disconnect from the internet, physically. Computer turned off for this. We don't know what protection this system now has.
2] Uninstall all Nortons products from the Control Panel > Add/Remove programs. It isn't working at the moment, but it may be holding back some processes like ChkDsk and Defrag. If you have paid for it, you can always re-install later and use that same license code.
3] Reboot, (restart), the computer to finish the uninstall process. If ChkDsk has to run again, then let it.
4] When Windows has fully loaded, go to My Computer, right click the C Drive, select Properties, then in the Tools tab, select "Check disk for errors". The system may need a restart. This is the same ChkDsk, but it is performing a full check not invoked by some error.
5] When it is done and Windows has fully loaded, reboot it. If ChkDsk doesn't intervene again, goto the C Drive properties once more and in the Tools tab, run the Disk Defragmenter.
See if that helps.
That, "No backups" is worrying. If you can back up those, 'can't be lost' personal files like photos, music, videos, documents, etc, before doing all this, then I would do so. It is always risky when disk errors start creeping in and you have no backups.
6] When all is done, turn on the Windows Firewall, (or check it is still turned on), close down the computer to re-connect the internet cable. Restart the computer and either choose to try ad reinstall Nortons or select one of the free anti-virus utilities. Whichever you choose, make sure it is up to date and perform a full system scan.
WIN XP Pro SP3 (+NortonSecurity2009) Two days ago & ongoing: On BootUp CHKDSK NTSF started running automatically on Blue Screen every time I turn on the computer. "One of your disks needs to be checked for consistency" and proceeds to check C:\ for 'Files' 'Indexes' and 'Security Descriptors.' (command line 'parameters' are needed for all these) Then Windows boots up normally. When I went to defrag I was not allowed to proceed because of CHKDSK and something about damaged files. Where did this CHKDSK automatic behavior come from & what is it doing? Is my disk corrupted? Will all my files get eaten from the inside out? (BTW-this "DUMMIE" [me] has NO backup) At the Very Same Time - My Norton Anti-Virus became Completely Disabled. An icon appeared on my desktop where I've not had one before - but I cannot access the program from there, from Start-AllPrograms, or even from C:\ProgramFiles, open, run. Nothing. The System-Tray Norton icon is gone too! Tried to download a quick, free good antivirus program for right-now protection: AVG and/or Avast - both failed. My behind is hanging in the breeze. (hoping that Windows little Virus Protection & the Firewall will do ok short-term) I've run Malwarebytes, Spy-Bot, & Terminator, but those aren't AntiVirus. HELP! These issues look like maybe 2 separate problems? Maybe not. Has something really bad gotten in? I'm really stuck! Is CHKDSK the priority if there is corruption of the HD, or is AV the priorty? Seems like I can't do either. ??? Anybody- ??? thanks in advance, ginni - P.S. Should I run Registry Mechanic, assuming all the responses are true and clean-sweep it? Last time I tried, System Restore didn't work, and prob'ly wouldn't fix this anyway...
thanks for your responses, ginni