📎 AI Summary:
The thread discusses a "No Operating System Found" error encountered by a user after the PC was on without any programs open, which resolved itself upon restart. An expert explains that this message typically appears during boot due to issues like a failing hard drive, BIOS detection problems, or a corrupt MBR, and recommends running diagnostic tests such as Seatools. The original poster inquires whether they should take action based on this advice, indicating concern but no final conclusion yet.
Nimit

Nimit

Honorable Member
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Feb 20, 2015
Messages
141
Thread Author #1
So my PC is on and no programs were opened, and suddenly a error comes with black screen "No Operating System Found" or something like this so i pressed the power button and turn offed my pc and then turn on and now it works fine.. can anyone tell me what was happened?.
 

Solution
Neemobeer
This message generally only pops up during boot. If it popped up while the OS was running I would wager either the computer crashed and rebooted and this popped up or malware was simulating the message. This message pops up during boot for one of a few reasons.
  • BIOS could not detect your hard drive
  • Hard drive is beginning to fail
  • A partition was marked active that shouldn't of been
  • Your MBR is corrupt
Most likely the hard drive is beginning a spirally decent to failure. I would suggest running a DFT test on the harddrive, seatools work really well and are available as a stand alone or as part of the Hiren Boot Disc. You could also verify whether or not the computer crashed. There should be a dump file in...
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Neemobeer

Neemobeer

Windows Forum Team
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#2
This message generally only pops up during boot. If it popped up while the OS was running I would wager either the computer crashed and rebooted and this popped up or malware was simulating the message. This message pops up during boot for one of a few reasons.
  • BIOS could not detect your hard drive
  • Hard drive is beginning to fail
  • A partition was marked active that shouldn't of been
  • Your MBR is corrupt
Most likely the hard drive is beginning a spirally decent to failure. I would suggest running a DFT test on the harddrive, seatools work really well and are available as a stand alone or as part of the Hiren Boot Disc. You could also verify whether or not the computer crashed. There should be a dump file in C:\Windows\Minidump if it did.
 

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Solution
Nimit

Nimit

Honorable Member
Joined
Feb 20, 2015
Messages
141
Thread Author #3
Neemobeer said:
This message generally only pops up during boot. If it popped up while the OS was running I would wager either the computer crashed and rebooted and this popped up or malware was simulating the message. This message pops up during boot for one of a few reasons.
  • BIOS could not detect your hard drive
  • Hard drive is beginning to fail
  • A partition was marked active that shouldn't of been
  • Your MBR is corrupt
Most likely the hard drive is beginning a spirally decent to failure. I would suggest running a DFT test on the harddrive, seatools work really well and are available as a stand alone or as part of the Hiren Boot Disc. You could also verify whether or not the computer crashed. There should be a dump file in C:\Windows\Minidump if it did.
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Okay thanks, will i consider this or leave it?
 

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