A glitch in the software that most midsize and large businesses use to update their Microsoft applications and operating systems has some administrators scrambling a day before Patch Tuesday.

If the problem in Windows Server Update Services (WSUS) is not fixed before tomorrow, administrators will not be able to download and deploy the vulnerability patches and other nonsecurity updates Microsoft Corp. has planned for tomorrow, said Andrew Storms, director of security operations at security tools vendor nCircle Inc. "It appears that anybody who synced WSUS [with Microsoft's Windows Update servers] today or yesterday is essentially DOA," he said. The default WSUS setting is to sync daily.

WSUS users began reporting the error this morning when they first accessed the WSUS console. According to those reports, the error read, "The WSUS administration console has encountered an unexpected error."

"WSUS was working without any problems before the weekend, nothing has changed on the server," said a user identified as Drobb on a forum hosted by a third-party site dedicated to the update management software.

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WSUS, Bug, Windows Update, Microsoft