In RabbitMQ see number of open channels

Browse to localhost:15672/api/overview and look for

`object_totals.channels`

Windows Task Scheduler make task background

Right click on task from the list, click on Properties and choose Run whether user is logged in or not

Running CLI Java appl through Task Scheduler gives error Registry Key has version but is required

Remove/rename java, javaw and javaws files in %WINDIR%\System32 and %WINDIR%\SysWOW64

Delete entries from RabbitMQ queue

Using GUI

Enable RabbitMQ Management through command

C:\Program Files\RabbitMQ Server\rabbitmq_server-3.7.14\sbin>rabbitmq-plugins enable rabbitmq_management

Log in to http://localhost:15672 with default credentials as guest/guest , scroll down and click on purge.

Using CLI

Download rabbitmqadmin from http://localhost:15672/cli/ and use it

python rabbitmqadmin purge queue name=queue2

Windows Update throws error

As Administrator, on command line run the following commands

net stop wuauserv

net stop cryptSvc

net stop bits

net stop msiserver

ren C:\Windows\SoftwareDistribution SoftwareDistribution.old

ren C:\Windows\System32\catroot2 catroot2.old

net start wuauserv

net start cryptSvc

net start bits

net start msiserver

 If wuauserv gives message of Cannot restart, stopping - kill its PID and it will auto restart.

On Windows Server 2016 Datacenter make unresponsive Software Center work

Use the Powershell command Invoke-WmiMethod -Namespace root\CCM -Class SMS_Client -Name SetClientProvisioningMode -ArgumentList $false

This takes out of Provision Mode the System Configuration Configuration Management Client which is used to install organization intranet provided updates through Software Centre.

The Provision Mode is the mode in which previous updates or upgrades were being installed. The client might be stuck in the mode owing to error in updates/upgrades.

On Windows Server 2016 Datacenter, increase password validity

Open gpedit.msc and configure Computer Configuration > Windows Settings > Security Settings > Password Policy > Maximum password age