I upgrade the Windows 10 to Anniversary Update 1607 and managed to get 19GB free space (18.5GB after update all apps in Windows Store). You can reset your MeeGoPad's Windows 10 but it will give you only 7-10GB free space.
After Window 10 reset and remove all personal files, apps, and settings you don't need to clean C:\ProgramData\
But you can check and clean:
After Windows Upgrade you can delete
C:\Windows.old by using the Windows Cleanup tool or IObit Unlocker.
Use build-in Windows Cleanup tool:
Go to your C: drive in Explorer, right click on properties. Then go to Disk Cleanup and then, important,
click “Cleanup system files“. You will be presented with the screen above and by adding a checkmark
to “Previous Windows Installation(s)” and clicking OK, you will get a lot of extra free space.
You can turn off Hibernation in Windows 10
For 4GB RAM device you will get 4GB more space!
Run a Command as Administrator and type:
CMD: powercfg -h off
You can delete other Language Packs
MeeGoPad T07 has six language packs installed. At this point you won't be able
to install more language packs but you can uninstall some and install new.
Run a Command as Administrator and typ:
CMD: Lpksetup /u
Select the language, click on Next and the Language Interface Pack will start uninstalling.
Optional (do not recommend) - you can Compress your Drive.
Go to your C: drive in Explorer, right click on properties. Then, click
"Compress drive to save disk space".
It will slow down your MeeGoPad!
Kaiwa, did you upgrade to Windows 10 Anniversary Update 1607?
To MeeGoPad T07 owners...
The device does not have a USB 3.0 port, and we are limited to USB 2.0 speed (up to 33 MB/s),
but what is the build-in Micro SD card reader speed?