Overclocking and reinstalling windows after seems to be a bad comination

sulcas

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Jun 30, 2014
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Before i say anything I'm a first time overclockers so please be merciful. I overclocked my cpu recently and after that for some weird reason every boot got me to bios and only after that I can go to Windows. The mobo that I have is Asus Z170-e and I used a guide on Overclockers UK that they have with their overclocking bundles which I bought. So without thinking about the fact that i am forced to enter bios every boot up I started reinstalling my windows 10 and once it did the first rr through the installation process it messed up my system. I've reset the bios to default settings now and my PC doesnt seem to be capable of booting past the windows loading screen. It just freezes if I try to boot from the windows hdd or the bootable usb with the win install. I tried different usb ports etc. No idea what's happening so any insight would be appreciated.
 

Faktion

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I have that same motherboard and if my overclock doesn't work properly it sends me to BIOS everytime I boot.

How did you reset the BIOS? Did you unplug the PC and pull the battery for 10 mins?

The instability sounds like that of a bad overclock.
 

sulcas

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Jun 30, 2014
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I have reset it to default in the bios menu and I tried booting via USB as my windows would not load after the installation interruption and it didnt change the situation so I took the battery out after that and still the same situation.

The only thing I haven't tried is resetting cmos but I assume that's been done so by taking out the battery.
 

sulcas

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Jun 30, 2014
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Nothing has changed. Still the same problem Faktion. Could it be that it just trying to load which is why it is stuck and not moving? Might be because of the messed up win install.
 
Might want to check CSM settings in your UEFI. May want to try enabled or AUTO. Also, what is your boot order as once Windows starts to install, "Windows Boot Manager" should be on top. Also, see if there is a boot option that can be set to "all devices".
 
OK, what is boot priority in your UEFI currently? What about CSM setting? USB setting(XHCI, legacy enabled) Are your drives being recognized properly in the UEFI? SATA controller set to AHCI? Which way was Windows 10 installed before, MBR or UEFI method? This is where CSM can come into play.
 

sulcas

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Jun 30, 2014
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Boot priority is the following:
SanDisk - usb stick with win install in
UEFI: SanDisk, Partition 1 - this is the same usb stick showing up again, not sure why
P6: ST1000DM003 - main hdd with windows in
P5: SanDisk - Ssd

In regards to CSM: 'Launch CSM Enabled' and 'Boot Device Control UEFI and Legacy OPROM'. Boot from settings in the CSM bit are all set to Legacy only.

Drives are all listed.

SATA Controller set to AHCI.

I don't really remember how I installed windows last time but it was most likely usb. If not, I just ran the install from my desktop.
 

sulcas

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Jun 30, 2014
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Right, just tried using my hdd where all of my data was and windows and it doesn't work whatsoever. Keeps putting me back into bios instantly even when I try to boot override it.
 

sulcas

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Jun 30, 2014
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Managed to get to automatic repair and it got to Windows logo (like it always does) where it says "Preparing Automatic Repair" and it froze again. The dots that spin on the bottom just freeze after 2s or so which is the exact same thing if I try to boot from hdd or from the USB.
 

sulcas

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Jun 30, 2014
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Just tried without the USB and it got me to the screen again stating that there is something wrong with the system and I need to choose an option. I tried to go for safe mode and it gave an error saying "Windows cannot complete installation in Safe Mode. To continue installing Windows, restart the computer.". So that atleast shows that the hdd is still ok. Changed the CSM to auto and it gave me a screen saying "Searching for media >>>" and then opened the bios. Is there a way I could format my hdd through bios? Maybe that would help?

Edit: forgot to mention that the boot order is correct after the removal of usb. Hdd first and ssd second.
 
Very odd. Still seems like Windows is corrupt/half installed at this point. With the bootable USB, there should be a repair section giving you access to command prompt which could be used to manually format the HDD. There are linux options as well you could install on a USB stick to perform the same task if you had access to another PC. Do you also have a Sandisk SSD besides Sandisk USB? If so, I'd disconnect that while doing all this troubleshooting to be sure it doesn't get wiped out by mistake.