How to format c; drive in win 8 by using DOS CMD as this is the only part working

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Matty999

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Dec 16, 2013
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How to format c; drive in win 8 by using DOS CMD as this is the only part I can get working right. now Every other method of re-installing, I get the message Partition missing! all because I installed Win 8.1. Thanks
 
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popatim
Again, you cannot format the drive you booted from, you need a boot dvd or usb. You can download a hiren's boot disk or the ultimate boot disk. Both have many useful tools including ones that can format your drive after you boot from the disk you'll create.

Are there important files you need to recover? If not just use the restore utility (often its press f10 or f11 during bootup) and go back to the full factory win8 and then try the 8.1 upgrade again if you still want it.
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hang-the-9

hang-the-9

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Mar 25, 2010
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Need a bit more details. You installed 8.1, rebooted and it does not come up properly? Exactly what is happened and what was done before the issue started?

If you need to format the system and install Windows again, just boot off the disk or to the system recovery partition, it will let you delete and create a new partition from the setup. Keep in mind this will wipe all the data off the disk.
 
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Matty999

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Dec 16, 2013
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10,510
Hi. I updated win8 to 8.1 and the screen went black! after endless restarts over 2 days it recovered and allowed me to back up some data, then on next restart back to black screen. I used the recovery disk to reinstall 8 but can not manage to get very far because it keeeps coming up with missing partition? ( GPT?) I can however get into the DOS CMD Prompt as Administrator.
Thanks for your help.
 
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popatim

popatim

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Dec 2, 2009
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Again, you cannot format the drive you booted from, you need a boot dvd or usb. You can download a hiren's boot disk or the ultimate boot disk. Both have many useful tools including ones that can format your drive after you boot from the disk you'll create.

Are there important files you need to recover? If not just use the restore utility (often its press f10 or f11 during bootup) and go back to the full factory win8 and then try the 8.1 upgrade again if you still want it.
 
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