I was running Windows XP Pro on a Dell Optiplex. It was working just fine. I "upgraded" to Windows 10
It seemed to work fine for a couple of weeks until we had a power outage at the home on Monday, October 12.
When the power came back on, I turned on the power of the PC. Instead of booting up to windows, the cursor flashed. I hit enter and the screen read something about repairing the hard drive.
Since it looked like it would take a while to cycle through (from 0% to 100%) I walked away.
When I returned and rebooted it began going through the bios screen but I got this message.
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A disk read error occurred
Press Ctrl+Alt+Delete to restart
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After doing that a few times and getting the same result, I pushed F12 during the Bios process.
On the Boot Device Menu I ran diagnostics for the hard drive and got the following message:
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Drive 0: ST32584110AS - Fail. Return Code: 7
--Reason Code: B9FVB91PTFE
Drive 1: No Device
Drive 2: HL-BT-ST DVD+/-RW GWA416B ?Diagnostics not supported
Drive 3: No device
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I tried this several times and got the same result.
Since I recently replaced the power supply, I checked all the plugs to make sure they were tight, but got the same results.
I even put in the old power supply with the bad fan and tried that, but got the same results.
When I originally got the computer from you I made a CD repair disk and tried to boot it from that and got this message:
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A disk read error occurred
Press Ctrl+Alt+Delete to restart
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I have since replaced the hard drive with Windows XP Pro and it works just fine.
I won't be "upgrading" to Windows 10.