Forced Windows 8.1 Update

Computer is a Toshiba p875-s7102 dual-bay laptop with an Intel i7-3630qm processor and hm76 chipset. 24gb of RAM, 120GB SSD is the boot drive, 750 hdd is a storage drive.  Intel hd4000 integrated graphics.  The specific variant of the 0XC1900101 error is 0x20020017.  Windows 8 is baked in-no discs came with the computer.  I did create a recovery USB.  When I originally got it, it only had the HDD-I cloned Windows 8 to the SSD later, but still retained Windows 8 on the HDD.  Later I updated to Windows 8.1 on the HDD (initially I had some problems with the profile service, but then did a refresh and was able to successfully log into my Microsoft profile).  So I have a computer with two internal drives-the SSD is the boot drive with Windows 8, and the HDD has 8.1 which I can boot from by changing the boot order in the bios.  To my knowledge, all of my drivers are up to date (if you believe the Intel driver program).

TIP: See my colleague's ANSWER post in this recent, similar thread => http://answers.microsoft.com/thread/8c5d320f-bf25-45c4-b7e3-234687d51cf6

If you need further assistance getting Win8.1 installed on the SSD, please begin your own, new thread in this forum: http://answers.microsoft.com/en-us/windows/forum/windows8_1-windows_install-wininstalls

Good luck!  Over & outta here...

This morning a blue banner appeared on my screen asking me when I wanted to restart my computer to continue to download the update to Win 8.1 (I have Windows 8).  At no time did I start the download process.  I selected "Remind me later" from the drop down.   A few minutes later, the download started, and the drop down only allowed me to select a time period to restart my computer (Now, 1 hour, 2 hours, 4 hours)!.  I was committed, and I never authorized this!  So I selected "Now" just to see what would happen.  I went to the Windows Store and lo and behold the update was downloading.  The update failed (I got an error 0xC1900101).  I disabled the update notification reminder using regedit (I was sick of seeing it every time I powered down my computer anyway)-but how could this happen?  This looked like a legitimate Windows notification.

The same thing just happened to me. What the deuce? I have 4 hours to stop it or I will not be happy. fells like Walmart. Its the only choice we get. Poo

I am absolutely horrified at this attempt to force me to upgrade to 8.1.  I am in the middle of trying to solve possible hacking because alien phones are appearing on my netrowk and then - lo - I get a red flag in right bottom corner telling me to sign in with my latest password (which I wouldn't do because of above problems) and then in the right hand corner a bright yellow sign saying that 8.1 upgrade is in progress. I feel like I'm being forcibly being taken over by the likes of ISIS. Why is this happening? And how can I find out if  my OneDrive account is being invaded? Furious and awaiting return call from a network maintenance company.

I am absolutely horrified at this attempt to force me to upgrade to 8.1...       

I dunno about being forced to install Win8.1 but - assuming KB2871389 & KB2973544 have been installed - have you read http://support.microsoft.com/kb/2973544?

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This article describes an update that enables Windows RT to update to Windows RT 8.1 and that enables Window 8 to update to Windows 8.1...If you have Automatic Updates enabled on a computer that is running Windows RT or Windows 8 and that has update KB2871389 installed, [installing KB2073544] can automatically start the update process to...Windows 8.1.

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Note that Win8.1 must be installed by 12 January 2016 or the computer will not be offered any further updates.