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To bypass Windows security restrictions, we need to perform a backup or restore from a bootdisk. However, the registry files are highly protected and not accessible while Windows is running even for the administrator user. To keep your computer safe and fast, it's a good practice to backup the registry regularly. Windows Registry is a major cause of system slowdowns, and can potentially lead to system crashes and boot failure. The registry is composed of multiple files: SAM, SYSTEM, SECURITY, SOFTWARE, DEFAULT, which can be located under the directory c:\windows\system32\config. Windows Registry is a database that stores all configuration information about the operating system, hardware, installed software and user profiles on your computer.
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