User Guide - Windows 8.1
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16
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1.
device manager Device Manager ()
2.
( DVD/CD-ROM)
3.
( HP DVD Writer 640b)
4.
Driver
5.
Update Driver ()
– –
Rollback Driver ()
:
:
1.
2.
control panel () Control Panel ()
3.
System and Security () System () System protection (
)
4.
System protection (
)
5.
14
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