PNG ICO ICNS MORE
Free icons for Windows8/Metro
Downloading, update
DarkSlateGray
512x512
update, Installing
Dark Glass
Folder, update
128x128
Sizcons
Reload, update, refresh
16x16
Echelon
update, Folder
32x32
PNG SVG MORE
Network & communications
Glyph
Cloud Computing
upload, Cloud, update
PNG MORE
Computer & hardware
Smooth
Crystal Project
style, stock, styles
24x24
Desktop apps
Pixel
Sizicons
refresh, update