Sticky keyboard keys are a common problem with laptops, usually resulting from drink spillage, food crumbs, or other substances gumming up the keys. Fortunately, with this guide, it is an easy fix.
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I recently started reevaluating how we do port security as a result of a recent customer's information security audit. We normally turn on port security and set the maximum MAC addresses to 1 (the default) or 2 (if there is an IP phone connected). The default behavior is to disable the port when the MAC changes or if the number of concurrent MAC’s exceeds the maximum.
However during testing I discovered this didn’t work exactly like I expected. Port security was enforced as long as a device stayed connected to the port. If the port was disconnected, the switch would remove the pre-existing MAC’s and ANY new device could connect, as long as the maximum was not exceeded. While this prevents unauthorized hubs and switches, it doesn’t prevent someone from unplugging a device and plugging in a different unauthorized device.
The solution to this is to use the sticky option on the port security interface command: [more]
After enabling, you will notice the currently connected MAC address(es) will appear in the running config:
This will stay in the config until the switch is rebooted, so it’s important to write the config.
Other related commands:
When you use sticky MAC addresses you'll want to make sure that the MAC addresses are cleared off of a switch when a device is moved. We had a laptop that was moved from one client location to another and one of the distribution switches was thinking the device was plugged into the old switch and the other distribution switch thought it was plugged ito the new switch. This created a situation where some network traffic was reaching the laptop and some was going into a black hole. After clearing the the sticky MAC addresses on the old switch the problem was resolved.
Update: You might also be interested in a couple stick MAC address tips.
I spilt pepsi on my MacBook Pro, have had it cleaned and diagnosed and everything is fine except for sticky keys. I've been told that I will need to replace the entire top shell at a huge cost. Is there anyway that i can clean it without replacing the entire top shell?
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I spilled cuticle oil on my keyboard. Tried cleaning with compressed air, electronic tuner spray and using qtips to wipe up excess oil. Keys worked for awhile, now they are not working well. Any ideas how to remove the oil?
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How to Delete Sticky Notes in Windows 10 The Sticky Notes app is a preinstalled UWP (Universal Windows Platform) app in Windows 10. This apps allows you to create and save notes to the desktop of your Windows 10 PC. Thanks to a new and improved design, added intelligence and Pen support, it is now easier than ever to quickly capture and add context to all your notes. A new Sticky Notes 3.0 has been released with a major update. This tutorial will show you different ways on how to delete Sticky Notes for your account in Windows 10.
Delete Note in Sticky Notes v2.1
1. Click/tap on a Sticky Note that you want to delete, and do 2. Press the Alt+F4 keys. 3. Click/tap on the recycle bin (Delete Note) icon. (see screenshot below) 4. Right click or press and hold on the top bar of the Stick Note, and click/tap on Close. (see screenshot below)
Delete Note Directly from Note in Sticky Notes v3.0 and higher
1. Click/tap on an opened note on your desktop you want to delete. (see screenshot below) 2. Click/tap on the Menu (3 dots) button. (see screenshot below) 3. Click/tap on Delete note. (see screenshot below) 4. Click/tap on Delete if prompted to confirm. (see screenshot below)
Delete Note using Keyboard Shortcut in Sticky Notes v3.0 and higher
1. Click/tap on an opened note on your desktop you want to delete. (see screenshot below) 2. Press the Ctrl+D keys. 3. Click/tap on Delete if prompted to confirm. (see screenshot below)
Delete Note from All Notes in Sticky Notes v3.0 and higher
1. Right click or press and hold on Can't Delete Sticky NoteSticky Notes in the Start menu (All apps) or on the taskbar, and click/tap on All notes in its jump list. (see screenshots below)2. Perform either action below in All notes: (see screenshots below) A) Click/tap on the Delete note (trash can) icon on the note you want to delete. OR B) Right click or press and hold on the note you want to delete, and click/tap on Delete note. 3. Click/tap on Delete if prompted to confirm. (see screenshot below) How To Delete A Sticky On A MacThat's it, Shawn Delete Sticky Notes In Windows
I spilt pepsi on my MacBook Pro, have had it cleaned and diagnosed and everything is fine except for sticky keys. I've been told that I will need to replace the entire top shell at a huge cost. Is there anyway that i can clean it without replacing the entire top shell?
Is this a good question?
Comments:
I spilled cuticle oil on my keyboard. Tried cleaning with compressed air, electronic tuner spray and using qtips to wipe up excess oil. Keys worked for awhile, now they are not working well. Any ideas how to remove the oil?
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