Method 1: When the Error Message States the Computer Is Locked by domain\username. 1  Press CTRL+ALT+DELETE to unlock the computer. 2  Type the logon information for the last logged on user, and then click OK. 3  When the Unlock Computer dialog box disappears, press CTRL+ALT+DELETE and log on normally.
Halley's comet returns in bits and pieces. Shooting stars should be visible October 21st & 22nd. October 20, 1998: The last time Halley's comet visited Earth, in 1986, many observers were disappointed because the famous comet was barely visible to the naked eye.
Halley's comet will next appear in the night sky in the year 2062. It orbits the sun every 75-76 years, so this is the time between appearances. Halley's comet was recorded by Edmund Halley in 1682. It was seen again in 1758, 1835, 1910, and 1986. 1  Javascript must be enabled to use Cool Cosmos.