Lenovo Yoga Windows 8.1 Update Solution Thread

Question

Before you attempt anything, I would suggest you read it first . This is probably not a conclusive guide for everyone's situation.
I updated to Windows 8.1 about a couple of hours ago and it's screwed up everything. I noticed users on this forum having a load of problems too so here's my 'roughish' guide on resololving all the issues that affected me (Lenovo Yoga 13 (2191))
Lenovo have release some official upgrade literature (incl rough solutions)
http://download.lenovo.com/lenovo/content/windows8-1/upgrade/ideapad/index_en.html
You are going to need to download new drivers and reinstall a few apps.
Windows 8 Drivers (Back them up - Do not delete them)
This is what I've done. All of your drivers will be stored in c:\Drivers if you haven't got a custom installation. I would move everything in there into a new folder (C:\Drivers\Windows 8) so you have a historical backup because the Windows 8.1 may not upgrade them all.
Windows 8.1 Drivers
Go here;
http://support.lenovo.com/en_GB/
Click Drivers & Software and search Yoga. This link should take you directly there but they never seem to post right on forums so...
http://support.lenovo.com/en_GB/downloads/detail.page?DocID=DS032590
Change the filter to show Windows 8.1 as the OS. Download everything it displays and save it in a new folder (C:\Drivers\Windows 8.1).
Now you have all the new drivers ready to install. Go into your C:\Drivers\Windows 8.1 folder and install each thing in the list on by one. If they request a reboot I would suggest you do that before progressing onto another driver. Do this until everything is installed.
At the time of writing the drivers include;
Bluetooth/Wlan, Camera, Card Reader, Chipset (Important), Management engine, Alscontrol, Dynamic Platform & Thermal Framework & Graphics.
WARNING:
Updating Wifi  drivers it may reset your settings (lose network passwords etc) so you may need to get your wifi pass to hand or skip this driver if you have no problems.
Graphics
My graphics went blurry. This was due to the HD graphics driver. This is in this pack. This fixed it for me, but in case it doesn't totally fix your problem, there is a suggestion to change a setting if problems persist of your graphics (Thanks Ezekial)
1. Right-click on Desktop and select "Screen resolution" option.
2. Now click on "Make text and other items larger or smaller" link.
3. It'll open "Display" settings page. You can also directly open "Display" window by selecting "Personalize" option from Desktop context menu and then click on "Display" link given at the bottom of left-sidebar.
4. Now enable "Let me choose one scaling level for all my displays" option and apply the changes.
5. Restart your system and your problem will be fixed.
Trackpad
If you have a problem where you lose your trackpad like I did, you can uninstall in that device manager but I would suggest you are careful in there. You can then click actions, and scan for hardware changes. 
Get to Device manager this way;
Right click My Computer/This Computer and click manage. Down the left side look for Device Manager.
When updating the drivers (anything with an exclamation mark) you should right click and update drivers. Search in your new folder. If you installed all the above drivers you may have nothing here.
Airplane Mode Hotkey/Function
To fix the problem with the AirPlane mode not working you will need to go back to the above downloads page and change the filter to Windows 8 and look in Power Management. You will need that. I had to run it with Windows 8 compatibility and Run as administrator.
Lenovo Transition/Auto-Rotate/Keyboard Disabler
Download this;
http://driverdl.lenovo.com.cn/lenovo/DriverFilesUploadFloder/36071/Win8_lenovo_transition_x64.exe
(Thanks to the other th3is & mikey94025)
Uninstall Lenovo Tranisition.
Reboot.
Reinstall the downloaded version. If it fails at the end, reboot. If it's still sketchy uninstall, reboot and install again but with Windows 8 compatibility. Hopefully you won't need to do that though.
Sound
This was broken. Drivers haven't been updated so in device manage update from your "C:\Drivers\(Windows 8)" folder
Bluetooth
I haven't tested my bluetooth yet, but if your's is broken the drivers are in your "C:\Drivers\(Windows 8.1)"  folder if you downloaded the drivers linked above..
Others
Citrix Receiver (I wouldn't expect this to affect the majority of you)
My desktop version of this broke. Maybe my custom installation, but a reinstall with the same commands fixed this.
Windows Update
I would suggest you enable this and make sure you are up-to-date. Swipe in from the right and search for update. Find Windows Update.
I would also update other apps & drivers (link on that page to download an update to enable this.
I don't seem to have any other problems. The support page Is not all completely relevant IMO and it has some drastic views on what you should do to upgrade. Just take note that McAffe may have also broken, so be careful on the net as you may be unprotected.
You may want to run through Device manager on anything you are still having problems with. Also depending on the age of your yoga there may still be other things you could update, but unless you have a problem, I wouldn't really worry too much. 
Windows 8.1 also no longer pins your apps to the start page by default. Now just swipe up from the bottom to find your apps if you want to pin them or just search for them (swipe in from the right)
Good luck!!! Sorry if I missed anything.

Answer 1

Can you be more specific with the below, as I can't make sense of what you're referring to?  I don't know what element size is at all, or where to change it.  And, I don't know what you mean by unchecking a checkbox in the device manager as there are no checkboxes.  More guidance and specifics would be appreciated.
* Change the element size back to recover from blurry text
* Go to device manager and uncheck that checkbox for the first of the USB devices in HID so that the touchscreen does always react on the first touch (this setting has been lost during the update process)