How to Fix a Windows Root System Problem

1. Boot the system using the last known good configuration option. Press the F8 key when the computer starts to access the Boot Option Menu. Tab down to Use Last Known Configuration and press enter to continue loading Windows.
2. Restore to a previous point when the system was working using System Restore. If Windows is not loading properly start the system in Safe Mode. Press the F8 key to go to the Boot Menu Options and select Safe Mode from the list.
3. Click the 'Start' button and then select 'All Programs.' System Restore is found in the System Tools program group which is located in the Accessories program group. Click on 'System Restore' and select a restore point that you want to use. You may be prompted to restart the system after the process has completed.
4. Uninstall the last program that was added to the system. If the system problem occurred after a new program was installed a conflict could have been created. This happens when the new program attempts to share a file that is needed by Windows. Removing the offending program may correct the root system problem.
5. Click the 'Start' button and then select 'Control Panel.' Click the Add and Remove Programs icon to see a list of installed programs. Scroll down to find the last program that was installed. Click the 'Remove' button to start the uninstall process. Restart the computer and let it load normally to see if the problem has been corrected.
6. Restore a backup of the Registry. If a program such as RegSeeker was used to clean the registry, a backup can be created each time it is run. Double click the icon on the desktop to start the program. Click on the Backups option on the left to see a list of registry backup files. Double click on a backup file and then click the Restore button to begin the process. You will need to restart the system when the backup has been restored.