Ideapad Flex 15 - Did anybody upgraded to Windows 8.1 successfully?

Hi All,
I am having different issues while upgrading from Windows 8 to Windows 8.1 and those issues seems to stick around even after rolling back to Windows 8.
Did anybody successfully updated Windows 8 PC to windows 8.1 ?
Here are my laptop specs:
Lenovo Flex 15 - 8GB Ram 500GB HDD
SPECIFICATIONS
Laptop Screen Size (Inches)
15.6
Laptop Display Type
10-point multitouch display
Laptop Memory RAM (GB)
8
Laptop Memory Type
DDR3L
Laptop Hard Drive Capacity (GB)
500
Laptop Hard Drive Type
Hybrid
Laptop Hard Drive Speed
5400 RPM
Laptop Processor Type Details
4th Gen Intel Core i5-4200U
Laptop Processor Type_db2_13376
Intel i5
Laptop Network Card
802.11 b/g/n
Bluetooth Compatibility
Yes
Laptop Operating System
Windows 8
Laptop Extra Features
AccuType keyboard , OneKey Recovery
Laptop Other ports
HDMI-out, 1 stereo headphones/microphone in combo jack
Laptop USB Slots
2 x USB 2.0, 1 x USB 3.0
Laptop Video Graphics
Integrated Intel® HD Graphics 4400
Media Card Reader
2-in-1 Card Reader
Laptop Audio
Integreated stereo speakers with Dolby Advanced Audio
Laptop Color
Black
Laptop Webcam
720p HD webcam
Laptop Battery Life
Up to 5 hours
Laptop Battery Type
Standard 4-cell battery
Laptop Dimensions (L x W x H)
15.04 x 10.7 x 0.87"
Laptop Weight
5.1 lbs
Laptop Use
Everyday
Laptop Refurbished
No
Windows Select PC_db2_13602
No
Laptop Style
Laptop/Notebook
Touch Screen Enabled
Yes
2-in-1
Yes
Solved!
Go to Solution.

Good news! I have the exact same model. However, I had no issues upgrading to 8.1.
Did you do the upgrade from a relatively fresh install? I couldn't even do the upgrade until Windows Update was caught up (about 72 updates).
←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗
Tap that kudos button if I helped ^^
←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗

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Attention!
Laptop Lenovo IdeaPad Flex 10 is not compatible with Windows 8.1 and Windows 8.1 Update (pre-installed operating system is Windows 8.0) .
More specifically, after update for Windows 8.1 all the drivers (including the latest) Intel (R) Iris (TM) graphics, Intel (R) Iris (TM) Pro graphics and Intel (R) HD GRAPHICS installed on this laptop does not support out of the sleep mode.
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I have an Ideapad Flex 15.
Since I upgraded yesterday to Windows 10, I have lost the touchscreen ability I had up to that point on Windows 8.1. On search for pen and touch, I was given this message on a system information page: "No pen or touch input is available for this display." I have looked in device manager under Human Interface Devices. Expanding the view to show hidden devices, I see "HID compliant touch screen." When I click to get device status, this is the message:
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How do I do that? I note a similar problem in Windows 8.1 on this posting:
http://answers.microsoft.com/en-us/windows/forum/windows8_1-hardware/touchscreen-not-working/c48cda23-93f2-4a9a-b6da-f7f47e67de0a
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Mod's Edit: Added model to Subject line for clarity

I took this in to a shop, and two technicians tried to solve the problem to no avail. One of them did as suggested, and uninstalled the touchscreen driver under Mice and other devices, but that only disabled the mouse touchpad. So it was reinstalled, and the driver for the touchscreen under Human Interface devices was reinstalled, but none of it helped, and I still lack the touchscreen capacity I had before. I cannot scroll except on the side ribbon, and I cannot use the touchscreen to zoom in and out, which I could do on Windows 8 and 8.1. So it seems there is no new Lenovo driver for the IdeapadFlex 15 that is compatible with Windows 10. I am told to wait and see, and to hope that Lenovo addresses this problem. BTW, I previously had two Microsoft tech people remote control my computer to fix this, and they both failed. I am disappointed with Microsoft and Lenovo. Any computer that was bought within the last couple of years fitted with Windows 8 should upgrade no problem to Win 10.

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Hi,
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Solved!
Go to Solution.

The 7260AC is supported.
http://cdn.cnetcontent.com/aa/94/aa94f26b-d102-4dcd-a749-34377159d6e3.pdf
Page 71-72
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←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗
Tap that kudos button if I helped ^^
←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗←↑→↓↘↙↖↗

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