How to Install Microsoft Teams on Windows 10

Microsoft Teams has become one of the go-to apps for online collaboration with the surge in people working from home. For many users, setting the app up has been simple.  For others, the app’s unconventional set up is confusing.

Microsoft Teams account/license

Microsoft Teams can be used for free, or with an enterprise license. You can purchase an enterprise license here if your organization hasn’t issued one to you.

To use Microsoft Teams for free, follow these steps.

  1. Open your browser.
  2. Visit this link.
  3. Click the ‘Sign up for free’ button.
  4. Sign in with a Microsoft or Outlook account.

Download and Install Microsoft Teams

Now that you have a Microsoft Teams account, you can install the app on your desktop. You should know that you can use the web interface if you want. Using the desktop app is a matter of convenience for most.

  1. Visit this link in your browser.
  2. Click Download for Desktop.
  3. Download the app for your system.
  4. Run the file to install it.
  5. Once installed, open Microsoft Teams.
  6. Sign in with the account you created, or the account issued to you by your organization.

Using Microsoft Teams

If this is your first time with the Microsoft Teams desktop app, go through the brief instructions below to find out how you can start using it.

1. Select and join team

You may have been invited to join a team or you may already be added to a team. 

If you’ve been invited to join a team;

  1. Visit your email inbox. This should be the same email the invitation was sent on.
  2. Look for an invite from Microsoft Teams.
  3. Click the Join Team button.
  4. Microsoft Teams will open.
  5. You will be added to the team.

If you’ve been sent a link to a team;

  1. Paste the link in your browser.
  2. Sign in to Microsoft Teams in your browser or open the desktop app.
  3. You will be added to the team.

2. Start a conversation

In Microsoft Teams, you can have one-on-one conversations, and calls with individual members of the team, or you can have group/channel-wide calls.

To start a one-on-one call or conversation;

  1. Select Chats in the column on the left.
  2. Click the new chat button at the top right of the column.
  3. Enter a team member’s name.
  4. Compose a message, and send it.

To start a channel-wide conversation or call;

  1. Select Teams in the column on the left.
  2. Expand the team so that you can view all channels under it.
  3. Select the channel you want to start the call/conversation on.
  4. Enter a message and it will be sent to everyone or click the call button at the top right to start a channel-wide call.

3. Mention and reply

In group conversations, i.e., conversations held over channels, messages appear in the order they’re sent and it’s hard to distinguish who a message is for. To make the conversation easier to follow, you can either specifically mention i.e., tag someone in a conversation, or reply to one to create a thread.


  1. Open the Teams channel you want to send a message over.
  2. Enter the @ symbol.
  3. Select a team member from the list that populates.
  4. Enter your message and send it. 
  5. The user will be tagged and will receive an alert telling them they’ve been mentioned.


  1. Open the Teams channel you want to reply to a message to.
  2. Locate the message.
  3. Click the Reply option under it.
  4. Enter and send the reply.
  5. The reply will appear under the original message in threaded form.

4. Find files and team activity

Microsoft Teams lets users share files and collaborate on them. The files are shared over a channel or a one-on-one conversation. To find files that have been shared or any new activity, follow these steps. 

  1. Select the Teams channel that you want to view shared files for.
  2. Select the Files tab on the channel.
  3. To view all files that have been shared across teams, click the Files tab in the column on the left.
  4. To view team activity, click the Activity tab in the column on the left.


Microsoft Teams may appear complex but it works a lot like other chat apps in most cases. You may run into errors now and then but that has more to do with how Microsoft Teams is set up for an organization. End-user problems are rarely the sort that cannot be solved and the app is, for the most part, intuitive to use.

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Invalid Signature Detected: FIX for iTunes Has an Invalid signature on Windows 10

If you use an iPhone and you do not own a Mac, you will need iTunes. iTunes syncs media files to an iPhone and backs it up so it’s hard to avoid using the app. 

iTunes is a sluggish app and has been abandoned on macOS. Windows 10 users still have to deal with it and sometimes, installing and running the app alone is a problem.

iTunes has an invalid signature

When you install iTunes, you may see the ‘iTunes has invalid signature ‘ error. This error prevents the app from being installed. 

The ‘iTunes has invalid signature’ basically means that the app’s publisher cannot be verified via a digital signature. This may be because there’s a problem with the app installer that you’ve downloaded. This problem may also appear if you’re trying to update iTunes.

Invalid Signature Detected (FIX)

Here are a few things you can try to fix the error.

1. Download the installer again

If you ran into this error when you were trying to install iTunes for the first time, delete the installer from your system. Download the installer again from the official Apple website. Do not download the installer from other sources as it may be corrupt or bundled with malicious scripts.

2. Install iTunes from the Microsoft Store

The iTunes executable file that is available for download on Windows 10 installs iTunes as a desktop app. If the executable from the official website doesn’t work, install the UWP iTunes app from the Microsoft Store.

  1. Visit this link in your browser.
  2. When prompted to, click the ‘Open Microsoft Store’ button.
  3. Click Get, and then Install.
  4. iTunes will be installed from the Microsoft Store where signature problems do not occur.

3. Fix problems with Apple update service

Apple’s update service is responsible for downloading and installing a new iTunes update. If there is a problem with it, it can cause the update to fail. 

  1. Open Control Panel.
  2. Go to Programs>Uninstall a program.
  3. Look for Apple Update Service.
  4. Select it, and click the Repair button.
  5. Once the repair is complete, try updating iTunes.

4. Uninstall and reinstall iTunes

If you’re seeing the ‘iTunes has invalid signature’ error when you try to update iTunes, uninstalling and reinstalling it can fix the problem. Uninstalling iTunes will not delete any backups of your iPhone nor will it delete your media library.

  1. Open Control Panel. 
  2. Go to Programs>Uninstall a program.
  3. Select iTunes.
  4. Click the Uninstall button.
  5. Download iTunes and install it.

5. Change security settings

This option should be used as a last resort and you should reset the security settings back to their default state once you’ve installed or updated iTunes.

  1. Open File Explorer.
  2. In the location bar, paste this: inetcpl.cpl and tap Enter.
  3. Go to the Advanced tab.
  4. Go through the list of settings. Under Security, enable ‘Allow software to run or install even if signature is invalid’.
  5. Click Apply.
  6. Update/install iTunes.
  7. Uncheck the ‘Allow software to run or install even if signature is invalid’.


The ‘iTunes has invalid signature’ error may occur if you’re installing a particularly old version of iTunes or if your Windows 10 is on a much older version than it should be.

Make sure you install the latest version of iTunes that is available, and that you keep your Windows 10 system up to date so that apps can install and update without any trouble.

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Windows 10 Taskbar Flickering or Flashing? Here’s How to Fix It

The taskbar is one of the oldest UI elements on Windows 10 and it hasn’t changed much over the years. Microsoft may have tried to push the Start menu on Windows 8/8.1 as an alternative app launcher but most users prefer to use the taskbar when they need to open a frequently used program.

The taskbar hosts two types of icons; pinned app icons, and icons for apps that are currently open. For some apps, like Chrome, the icon may also show activity e.g. a download that is in progress or a badge that tells you there are unread messages.

The taskbar can also show other toolbars and the system tray, while given its own separate name, is really just a part of the taskbar and not a separate UI element. 

Taskbar icons flashing & flickering on Windows 10

Taskbar icons can show some app activity but they’re generally static meaning the icons are never animated themselves unless there is activity to show for the app. If the icons on the taskbar are flashing or flickering, it isn’t normal. Here are a few things you can try to fix the problem.

1. Check the app

It’s possible that an app icon is flashing because the app is showing an important alert.

  1. Click the app icon to bring it to the front.
  2. Check for any pending messages or flashing alert boxes.
  3. Resolve the message/alert.
  4. The app icon will stop flashing.

2. Remove UI modifying apps

Windows 10 allows users to modify its UI by installing third-party apps and they may cause the icons on the taskbar to flash and flicker. 

  1. Open the Control Panel.
  2. Go to Program>Uninstall a program.
  3. Go through the list of installed apps.
  4. Select an app that modifies the UI or the taskbar.
  5. Click the Uninstall button.
  6. Repeat for all apps that modify the UI.
  7. Restart the system.

3. Run system scan

Try running a system scan for corrupt or damaged files. The scan will be able to resolve some issues.

  1. Open Command Prompt with admin rights.
  2. Run this command: sfc /scannow
  3. Allow the command to complete and check if the flickering and flashing stops.

4. Run disk image check

There may be a problem with Windows’ own system files that’s causing the flickering. The DISM tool can scan system files for errors like this and fix them.

  1. Open Command Prompt with admin rights. 
  2. Run this command: DISM.exe /Online /Cleanup-image /Checkhealth
  3. Once the command completes, run this command next: DISM.exe /Online /Cleanup-image /Restorehealth
  4. Allow both commands to finish, and restart the system.

5. Check display drivers

The flickering and flashing may have to do with your display driver. If it’s outdated, or if it’s recently been updated, it may be causing problems.

  1. Open the Device Manager.
  2. Expand Display adapters.
  3. Right-click your display, and select Properties.
  4. Go to the Driver tab.
  5. Check when the driver was last updated.
  6. If it has recently been updated, click the Roll back button to go back to an older version and see if the problem goes away.
  7. If the driver is old, click the Update Driver button, and install any updates that are available. 
  8. Restart the system and check if the problem is resolved.

6. Update Windows 10

This is a bug in Windows 10 1709. This version of Windows is well out of date so it’s a good idea to update to the newest version. The update will resolve the issue. 

  1. Open the Settings app (Win+I keyboard shortcut).
  2. Go to Update & security.
  3. Select the Windows Update tab.
  4. Click Check for updates.
  5. Install feature updates that are available.

7. Create a new user account

If you do not feel like updating Windows 10, you can always try and create a new user account. The new account is far less likely to have this bug.

  1. Open the Settings app (Win+I keyboard shortcut).
  2. Go to Accounts.
  3. Select the Family and other users tab.
  4. Click ‘Add user’.
  5. Set up a new local user.
  6. Sign in as the new user.


The Taskbar icons flashing & flickering bug can appear after a Windows update, or even after a fresh installation. The reason is likely something wrong with Windows’ files which is why many users are able to fix the problem by creating a new user or updating Windows 10. In the end, that may be what works for you as well.

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Pictures in Windows Photo Viewer Won’t Rotate (SOLUTION)

Windows Photo Viewer is an old Windows 7 app for viewing photos. By default, the app cannot be used on Windows 10 but a simple registry hack can enable it again.

This app, while technically obsolete, is still one of the best photo viewers you can get on Windows 10. The stock Photos app on Windows 10, while feature-rich, is still slow and doesn’t offer the best photo viewing experience. 

Windows Photo Viewer doesn’t have a lot of features but it does offer some editing features; you can rotate photos by clicking the arrow buttons on the control bar at the bottom.

Can’t rotate picture in Windows Photo Viewer

If you’re trying to rotate pictures using Windows Photo Viewer, and they don’t rotate, check for the following impediments.

1. Check file attributes

If there’s a particular image that you cannot rotate in Windows Photo Viewer, check if the file is read-only. When a file is read-only, edits to it are blocked.

  1. Right-click the file.
  2. Select Properties from the context menu.
  3. Go to the General tab.
  4. At the very bottom, uncheck the Read-only attribute box.
  5. Click Apply.
  6. Try rotating the image.

2. Check file permissions

Another reason you may not be able to rotate a photo is that you don’t have the authority to edit the file. This happens most often when you’ve imported photos from a camera.

  1. Right-click the photo and select Properties from the context menu.
  2. Go to the Security tab.
  3. Select your user name, and click Edit.
  4. Enable all permissions or uncheck all permissions under the ‘Deny’ column.
  5. Click OK.
  6. Try rotating the image now.

3. Add user access

The previous method may not work if your user isn’t listed. In that case, you will have to add it.

  1. Right-click the file and select Properties from the context menu.
  2. Go to the Security tab.
  3. Click the Edit button.
  4. Click Add.
  5. Enter your username in the ‘Enter the object names to select’.
  6. Click ‘Check Names’.
  7. Once added, grant the newly added user full permission to edit the file (see previous solution).

4. Try a different app

While Windows Photo Viewer is a great app, and it continues to work flawlessly in most cases, you can always use a different app to rotate photos. 

  1. Open the photo in the stock Photos app.
  2. At the top, click the rotate button or tap the Ctrl+R key.
  3. Once you’ve rotated the image, click the more options button at the top right.
  4. Select Save as.
  5. Save the new image.

5. Run system file check

File permissions are often what prevent a file from being edited and rotating an image is an edit to the file. If after trying to resolve the permissions, you’re still unable to rotate the image in Windows Photo Viewer, there may be a problem with system files.

  1. Open Command Prompt with admin rights.
  2. Run this command:sfc /scannow
  3. Allow the scan to finish and repair any files it can.
  4. Next, run this command:DISM.exe /Online /Cleanup-image /Restorehealth
  5. Again, let the command finish.
  6. Restart the system.
  7. Try rotating the file.

Save the change

Windows Photo Viewer does not have a save button but when you close the app after rotating an image, you will briefly see the ‘Saving’ message appear on the app. If you’re using a different app to rotate images, e.g. the stock Photos app or IrfanView, make sure you save the file after rotating it.


Windows Photo Viewer normally only runs into problems if there’s a problem with the file you’re viewing. It’s mostly a simple app that works without trouble. The only exception is if the app is unable to read EXIF data which is where information about the file’s orientation is stored. In that case, using an alternative app is a good idea.

The post Pictures in Windows Photo Viewer Won’t Rotate (SOLUTION) appeared first on AddictiveTips.

How to Schedule a Teams Meeting When Button is Missing in Outlook

Microsoft Outlook allows users to create a Microsoft Teams meeting from within the app. This allows users to schedule meetings that are automatically shared to Microsoft Teams. This feature works on the Outlook desktop app, the web app, and the mobile apps.

Teams meeting missing from Outlook

Microsoft Teams missing from Outlook

In order for Outlook to schedule Microsoft Teams meetings, it needs an add-in. The add-in is called Microsoft Teams and you cannot manually install it from anywhere.

The Microsoft Teams add-in for Outlook is installed automatically when users have Microsoft Teams, and Microsoft Outlook installed on their desktop. For the web version, if the same email account is used to sign in to Microsoft Teams and Outlook, the add-in will automatically appear.

If you’re trying to schedule a meeting but the Microsoft Teams is not appearing in Outlook, try the following.

1. Sign out/in Microsoft Teams

This fix has the highest success rate. Any time the Microsoft Teams add-in disappears, this is the easiest way to bring it back.

  1. Quit Microsoft Teams.
  2. Quit Microsoft Outlook.
  3. Open Microsoft Teams, and sign out.
  4. Sign back in to Microsoft Teams.
  5. Quit Microsoft Teams, and open it again.
  6. Open Microsoft Outlook and the add-in will appear.

2. Check Microsoft Teams add-in

It’s possible the Microsoft Teams add-in hasn’t been installed in Outlook. To check if it has been installed follow the steps below.

  1. Open Outlook.
  2. Go to File>Options>Add-in.
  3. Go through the list of add-ins and you should see one named Microsoft Teams Meetings.
  4. If you do not see this add-in, click the ‘Go’ button at the very bottom.
  5. In the window that opens, check if the add-in is listed. 
  6. If it’s listed, select it, and click Enable.

3. Install Microsoft Teams add-in

As mentioned earlier, the Microsoft Teams add-in cannot be installed manually i.e., you cannot download the add-in as a stand-alone file. It comes, and goes, with Microsoft Teams.

  1. Open the Settings app (Win+I) on your Windows 10 system.
  2. Go to Apps>Apps & features.
  3. Select Microsoft Teams.
  4. Click Uninstall.
  5. Allow the app to be uninstalled.
  6. Once the app has been uninstalled, download it again, and install it.
  7. During installation, the add-in will be added for Outlook.


The Microsoft Teams add-in may disappear or it may not work correctly if Microsoft Teams isn’t open. As a rule of thumb, always have the app open. It’s best if the app is not minimized. You may have set Microsoft Teams and Outlook to start automatically at startup. Try to change it so that Microsoft Teams opens first, and then Outlook is launched.

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