Will disk cleanup delete things by mistake?

Disk Cleanup will not accidentally delete things; Disk Cleanup only cleans up useless files in the system, such as system cache, IE cache, and some programs downloaded and installed directly from the Internet; it will not accidentally delete the system file.

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Disk defragmentation can improve the reading and writing speed of files. However, blind defragmentation may cause some unnecessary dangers

Do not read or write data during defragmentation. Disk defragmentation is a very long task. Many friends like to listen to music and play music while defragmenting. Playing games is very dangerous because the hard disk is spinning at high speed during disk defragmentation. Reading and writing data at this time may cause the computer to crash or even damage the hard disk.

It is not advisable to defragment frequently. Disk defragmentation is different from other computer operations. The hard disk will rotate continuously at high speed. If disk fragmentation is performed frequently, the life of the hard disk will be reduced. It is recommended to defragment it once a month or so.

Be prepared. Before defragmenting the disk, you should perform a "disk error scan" on the drive. This can prevent the system from mistaking certain files for logical errors and causing file loss. The specific operation is (taking Windows Click the "Start troubleshooting" button in the column, and then follow the prompts.

Do not cross defragment under dual systems. Due to system compatibility and other reasons, cross defragmentation will cause file translocation, confusion and even system crash.

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