4 unknown devices in Windows 7 RTM 64 on dv7 Mochin 03.19 HP tips Mochin before proceed with the steps to solve your problems make sure you check the ID, the ID for dv7 i have is ACPI/HPQ0004 so it is the:ProtectSmart Hard Drive ProtectionDownloadthis will solve 3 unknown device and the other one left is:HDD protection feature:Download Author : Mochin Share this Related Posts