TO ENABLE REGISTRY

If you have Windows XP Professional and access to an administrative user account, you could change the registry editor options in the Group Policy Editor.1. Click Start, Run2. Type GPEDIT.MSC and Press Enter3. Go to-->* User Configuration-->* Administrative Templates-->* System4. In the Settings Window, find the option for "Prevent Access to Registry Editing Tools" and double-click on it to change.5. Select Disabled or Not Configured and choose OK6. Close the Group Policy Editor and restart your computer7. Try opening REGEDIT again =============================================================SECOND METHOD::::DOWNLOAD THIS FILE......http://securityresponse.symantec.com/avcenter/UnHookExec.infWHEN IT WILL BE DOWNLOADED, THEN RIGHT CLICK ON THIS FILE AND THEN CLICK ON "INSTALL"{IT WILL RESET ALL SETTINGS OF REGISTRY....}