The restore partition on your RT may be corrupt. The guide below will refresh your recovery partition and install the system updates. Other updates will still have to be installed. It was written for other users that installed updates and their RT would not boot up.
Windows RT 8.1 Update 3, KB3033055, has to be installed before the rollup updates listed below. This applies to the Surface RT and the Surface 2. Future Security Rollup updates will probably have the same effect for users that have to reset or refresh their RT device.
2018-01 (Jan) Security Monthly Quality Rollup KB4056895
2018-02 (Feb) Security Monthly Quality Rollup KB4074594
When the RT updates automatically the rollup updates will install. Update 3 is an optional update and this creates the problem if it is installed later.
Get Update 3 installed as soon as possible. This is the update that gives the Windows 10 interface and does away with the metro start screen. You do not have to wait for KB3033055 to show up as an optional update. It is available as a Standalone Package, KB3097667, for download.
All you need is a good 4GB USB memory stick. Backup anything you want to save from the RT to a PC, another memory stick or the micro SD card if you have one installed on the RT.
Download the Windows RT recovery image
https://www.microsoft.com/surface/en-us/support/warranty-service-and-recovery/downloadablerecoveryimage SurfaceRT_BMR_10.8.17.0.zip 3.033GB.
Extract the zip and paste all of the folders and files in the SurfaceRT_BMR folder to the USB stick.
Restore or refresh your Surface RT with the recovery image, booting from the USB drive.
Turn the RT off and boot from the USB drive, press and hold the volume-down button while you press and release the power button. When the Surface logo appears, release the volume-down button. It will take a while to boot, maybe a minute or longer. Go to troubleshooting.
You will have the selection, - ‘Just remove my files’ or ‘Fully clean the drive’. Select ‘Just remove my files’.
One of the pages will ask for a drive encryption key. Go to the bottom of the page and select ‘Not this Drive”. Partition selection, Select Yes, repartition the drives.
In the setup, select your color, you can’t change this later, skip connecting to WiFi, you can add your account later, you do not have to enter a password when you set the user name.
When the reset finishes, in settings go to ‘Power and Sleep’, ‘When plugged in’ set to ‘Never’. Setup anything else you need, like connecting a mouse.
Turn on WiFi, Search for updates from the Control Panel, Windows Update you, will see a firmware update, install all Windows updates, restart
Go back to Windows Update it will show updates are available. Do not install these updates. What you need is KB2919355 and it will not be there. Stay on the page and select ‘Check for updates’, top left side. When this finishes, click the line to see ‘important updates are available’ to check. Install KB2919355 along with the other updates. Restart.
Turn off Wifi, install KB3173424, restart
Install KB3172614, restart
Turn off Wi-Fi and install KB3097667.
After the restart, right-click on Taskbar > Properties, Start Menu. Check the box, Use the Start Menu instead of the Start Screen for no more metro screen.
If you have to stop before you get this last one installed turn off WiFi to prevent automatic updates from installing.
Finish with other updates or let the RT do it automatically.
KB3173424, KB3172614 and KB3097667 are standalone MSU update installer files that you download to install at the correct time.
Download KB3173424 HERE.
Download KB3172614 HERE.
Download KB3097667 Windows RT 8.1 Update 3 Standalone Package
Download these ahead of time and place them on a USB drive to install at the correct time. There is room on the boot USB drive you use.
If you do not want the Metro browser opening for some links go the control panel, internet options, programs tab. From the dropdown select ‘Always in Internet Explorer on the desktop’ and check the box Open Internet Explorer tiles on the desktop.