Situation: The user receives this popup message: Sorry, we’re having trouble opening this item.

Please refer to this post: How to archive mailbox and free more spaces?

or How to reduce the size of your Outlook data file

Situation: The user has a problem to use Integrated laptop camera ion Microsoft Teams. he receives a message that my camera stops working frequently while on a Teams’ meeting. He doesn’t have the problem to use the camera on other apps. Also, external camera doesn’t have this issue.

Resolution 1: clear my Teams cache.

Resolution 2: Install Windows and Office latest updates.

Resolution 3: Install latest Camera driver.

Resolution 4: Repair Office 365.

Situation: the client is running Veeam Backup v11. One of the Veeam backups has this warning: Unable to perform indexing because connection to the guest could not be established
Unable to perform guest file system indexing: Failed to call RPC function ‘InstallAndCreateSession’:
Cannot connect to VM [45a2a1d8-c9a5-42e3-bb7b-239f0d35b478] over PSDirect.
Failed to invoke func [Connect]:
Unknown error 0x80131500. Unknown error 0x80131500.
Failed to execute PowerShell command: The credential is invalid.;COM error: Code: 0x80131500.

Resolution: You may want to disable Enable guest file system indexing.

Or do nothing. Please refer to this article:

Situation: When attempting to copy some Sony RAW (A1 camera) files from one disk to another disk, you may receive an error message: The file or directory is corrupted or unreadable. If you go to Disk Management, you can see the disk.

Resolution 1: Run chkdsk /R to repair the disk.

Resolution 2: Change disk format from FAT or xeFAT to NTFS.

Situation: After login a Dell PC, you may receive this popup:

Popup “dcu.centennial://toasthandler/”

Troubleshooting: Normally, this error is associated with Dell Update Assistant. You may have two options: 1.  Uninstall Dell Update Assistant.

2. Download the latest version Dell Update Assistant from the support page for your system.

Situation: A user can’t login Office 365 with error code: 53004.

Troubleshooting:

1. Login Azure portal.
2. Go to Azure Active Directory.

3. Click Security on the left pane.

4. Click on Multifactor authentication.

5. Click on Block/Unlock users.

6. Highlight the user who is blocked and click on Unlock.

Also refer to these posts:

Fixing “Your organization doesn’t allow you to update your password on this site”

Fixing “Your sign in was successful but does not meet the criteria to access this resource”

Situation: When attempting to login Office 365, you may receive this message: “Your sign-in was blocked”.

Troubleshooting:

1. Login Azure portal.
2. Go to Azure Active Directory.

3. Click Security on the left pane.

4. Click on Multifactor authentication.

5. Click on Block/Unlock users.

6. Highlight the user who is blocked and click on Unlock.

Also refer to these posts:

Fixing “Your organization doesn’t allow you to update your password on this site”

Fixing “Your sign in was successful but does not meet the criteria to access this resource”

Situation: When attempting to remove a Backup repository, you may receive this message: Backup is used for configuration backup.

Troubleshooting: 1. If one Backup is using the Backup repository, delete the backup job if you don’t need it or switch to another Backup repository first.

2. If the Backup repository is default Backup repository, switch to another Backup repository by following these steps:

• From the main menu, select Configuration Backup.

• Switch the Backup repository.

Situation: When upgrading Veeam v9.5 to V11, the client has an issue with SQL 2016 database. They re-installed it by changing the SQL instant name from VeeamBackup to VeeamBackup2. The installation was successful.

However, they can’t create a backup with The timeout period elapsed prior to completion of the operation or the server is not responding message.

Troubleshooting: Changed the database name back to VeeamBackup instead of VeeamBackup2. To do that, open Veeam Backup and Replication Database Connection Settings.

Situation: When upgrading Veeam v9.5 to V11, the client has an issue with SQL 2016 database. They re-installed it by changing the SQL instant name from VeeamBackup to VeeamBackup2. The installation was successful.

However, they can’t create a backup with Execution Timeout Expired message.

Troubleshooting: Changed the database name back to VeeamBackup instead of VeeamBackup2. To do that, open Veeam Backup and Replication Database Connection Settings.