Knowledge base for software setup, errors, and daily tool work.

Remote Desktop Black Screen After Connection: How to Fix

You connect to a remote PC via Remote Desktop Protocol (RDP), see the login screen, but after ent...

Fix Windows Security Authentication Error 0x80070035

Fix Remote Desktop DNS Not Working After VPN Connection

You connect to your VPN, then try to RDP into a remote machine by hostname, but it fails. Pinging...

Fix Task Scheduler Error 0x80070005 Access Denied

You scheduled a task, but it fails with error 0x80070005 and the message 'Access Denied'. This us...

Fix Port Already Allocated Error with netstat

When you try to start a service or application and see "port already allocated" or similar, it me...

How to Fix Ubuntu APT Lock Error by Removing /var/lib/apt/lists/lock

If you see E: Could not get lock /var/lib/apt/lists/lock - open (11: Resource temporarily u...