Norton disk doctor chomikuj12/24/2023 ![]() Microsoft and the Window logo are trademarks of Microsoft Corporation in the U.S. Alexa and all related logos are trademarks of, Inc. App Store is a service mark of Apple Inc. Mac, iPhone, iPad, Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. Android, Google Chrome, Google Play and the Google Play logo are trademarks of Google, LLC. Firefox is a trademark of Mozilla Foundation. or its affiliates in the United States and other countries. NortonLifeLock, the NortonLifeLock Logo, the Checkmark Logo, Norton, LifeLock, and the LockMan Logo are trademarks or registered trademarks of NortonLifeLock Inc. LifeLock identity theft protection is not available in all countries. The Norton and LifeLock Brands are part of NortonLifeLock Inc. Defragmentation is the rearranging of these sectors so that file data is stored contiguously. Over time, more files are added and deleted, which increases this fragmentation and lowers the performance of the computer. Reading and writing now involves the drive heads having to move across the disk to find all the fragments of the file, thus, slowing down the process. If a new file being written is bigger than the contiguous space available, the operating system will have to fragment the file. When a file is deleted, the operating system tries to reclaim that deleted space. The operating system tries to store file data in contiguous sectors on the disk, so that the drive heads can move sequentially, reading each sector in turn. The more you use your computer, the more fragmented your disks become. Over time, the bits of information that make up your files gradually spread over the disk. Your computer's hard disk stores all of your files, applications, and the Windows operating system.
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