You can use windows sfc (system file checker) You'd need your XP CD to make this work.
Click Start> Run> type sfc /scannow Note the space.
(Note that there is a space between sfc and /scannow)
i could not find that windows xp cd…when i install a program such as quicktime or something the install shield becomes unresponsive. My applications and cpu have been runnning alot slower since the winlogon.exe error. Is there anything i else i could do.
Backup your Registry…
- Press "CTRL - ALT - DEL" keys all at the same time to start "Task Manager"
- In the Task Manager window click on "File", then from the drop-down menu select "New Task (Run…)"
- In the "Create New Task" window enter\type "regedit" (without quotes)
- Once Regedit opens click on the FILE menu and select Export
- Save the file as backup. Save the file somewhere you will remember and not delete. IMPORTANT: make sure to set the export range to ALL
I recommend you download RegSeeker. Extract it to it's own folder, open and double click RegSeeker.exe to start the program. Maximize the window and click clean registry. Check all sections and click OK. When the scan is complete, verify the backup box in lower left corner is checked and click the select all button, then select all again. Then right click within the search results and select delete. Run it again and again, deleting everything it finds until it finds nothing. Reboot and make sure your programs are working properly, control panel and add/remove programs windows open, etc (basically just do a quick check of everything). In the event anything was 'broken', you can open RegSeeker, click backups and double click any/all files to put the information back. A reboot may be required for the effects to be seen. Reboot When done.
NOTE: To be extra safe you can choose to only remove the items in RED.
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Make sure you use proper prevention to keep from having problems occur to your computer in the future.