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#1
OS not loading, Safe Mode won't boot past classpnp.sys
I replaced my Intel Q6600+DP35DP mobo with an i5-4690K and Asus Z97 K. I get a "missing operating system" message. When I boot up with a Windows 7 64 bit installation USB and then Repair Your Computer, it does find the OS on the hard drive still.
I tried following this guide for repairing the boot manager
How to Fix Windows 7 When It Fails to Boot
but I didn't get anywhere, until I tried this part
Now instead of "Missing Operating System" I get the "Windows Error Recovery. Windows failed to start. A recent hardware or software change might be the cause" then it recommends I do the startup with the installation disc and repair my computer.*Some users also find simply deleting the boot folder and retrying the above steps effective at resolving boot issues, but it is not recommended.
If I instead Start Windows Normally, it displays a few seconds of the startup animation then auto restarts.
If I chose Safe Mode, it shows Loading Windows Files until it gets to windows\system32\drivers\classpnp.sys, pauses for a second then restarts.
If I boot up with the installation USB again, and selecting my Windows installation it will tell me "You computer was unable to start; StartUp Repair is checking you system for problems" and start searching for problems for a few minutes, and then attempting repairs for a few minutes, and then it will give me "startup repair cannot repair this computer automatically"
And then it has these details.
After that if I try to repair startup from the next screen it will give me "startup repair could not detect a problem" *shrug*Code:Event Name: StartupRepairOffline Signatures: 0.0.0.0 6.1.7600.16385 unknown 21200273 ExternalMedia 17 NoRootCause OS Version: 6.1.7601.2.1.0.256.1 Locale ID: 1033
I've tried both SFC and DSKCHK but neither of them have reported any problems.