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The notebook computer turns on "Invalid system disk,replace the disk and then press any key" (the error message is: Invalid system disk), can not enter the system, it is said to start with the boot disk, but his notebook does not have an optical drive, There is no
Win7 computer settings do not save the memory disk using the Record method The specific methods are as follows: First, add the environment variable devmgr_shownonpresent_devices to the system, the value is 1; Second, run Device Manager, open the view hidden device. Expand disk drives, storage volume two, and the U disk
Method one, hidden letter, and no view (for Windows systems) Open Registry Editor, expand the following branch [Hkey_current_usersoftwaremicrosoftwindowscurrentversionploiciesexplorer], and create a new binary value, "NoDrives", The default value is 00 00 00 00, which means that no drives are hidden. The key value consists of four bytes, each bit of each byte corresponds to a disk from a: to Z: When the corresponding bit is 1 o'clock, the correspondi
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