System Restore isn't available for Windows RT.(Hardware & drivers)
1. Swipe in from the right edge of the screen, and then tap Search.
(If you're using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, and then click Search.) Enter Recovery in the search box, tap or click Settings, and then tap or click Recovery.
2. Tap or click Open System Restore, and follow the prompts.
To refresh your PC
1. Swipe in from the right edge of the screen, tap Settings, and then tap Change PC settings.
(If you're using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, click Settings, and then click Change PC settings.)
2. Under PC settings, tap or click General.
3. Under Refresh your PC without affecting your files, tap or click Get started.
4. Follow the instructions on the screen.
