Magandang umaga mga sir i need your back up regarding po sa "AN OPERATING SYSTEM WASN'T FOUND" pano po gagawin itong problem na to..please po...maraming salamat mga sir..... kasi yong pc na binili win10 tapos nag restore ako tapos yon na ang lumabas ""AN OPERATING SYSTEM WASN'T FOUND TRY DISCONNECTING ANY DRIVES THAT DON'T CONTAIN AN OPERATING SYSTEM" mag downgrade ako kasi gusto ko yong win7....please salamat mga sir..
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