History of Windows

PBE (Pre-Big Bang)
Unknown OS (20 billion BC/0E1e+308-6200000000)

BTE (Before Time Era)
Oggosoft Vanura -∞ (Update 5)

PE (Planck Era)
Planck Debut Operating System (10 -43s after the Big Bang)

BC (Before Christ)
Oggosoft Vanura -∞ (13800000000 BC) (Update 6-Newer)

Oggosoft Vanura 10000000000 BC

Vanura 10000000000 BC

Vanura 1000000000 BC

Vanura 100000000 BC

Vanura 10000000 BC

Vanura 1000000 BC

Vanura 100000 BC

Vanura 50000 BC

Vanura 20000 BC

Vanura 10000 BC

Vanura 9000 BC

Vanura 8000 BC

Vanura 7000 BC

Vanura 6000 BC

Vanura 5000 BC

Vanura 4000 BC

Vanura 3000 BC

Vanura 2000 BC

Vanura 1900 BC

Vanura 1800 BC

Vanura 1700 BC

Vanura 1600 BC

Vanura 1500 BC

Vanura 1400 BC

Vanura 1300 BC

Vanura 1200 BC

Vanura 1100 BC

Vanura 1000 BC