Lenovo IDEAPAD Y730 User Manual download pdf (Page 151)

Appendix D. Notices

142

 Using the preinstalled recovery program, bring the hard disk back to

factory-ship state.

These operations, however, only change the file allocation of the data; they

do not delete the data itself. In other words, the data retrieval processing is

disabled under an operating system such as Windows. The data is still

there, even though it seems to be lost. Thus, it is sometimes possible to read

the data by use of special software for data recovery. There is a risk that

people of bad faith may read and misuse the critical data on hard disks for

unexpected purposes.

To prevent the leakage of data, it becomes very important that you take

responsibility for deleting all the data from the hard disk when you dispose

of, sell, or hand over your computer. You can destroy the data physically

by smashing the hard disk with a hammer, or magnetically by means of

strong magnetic power, thus making the data unreadable. But we

recommend that you make use of the software (payware) or service (pay

service) specifically developed for the purpose.

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Lenovo IDEAPAD Y730 User Manual Page 151