When running a file from a mapped drive you might get this error.

This is actually a Windows security message, intended to remind users not to open untrusted files downloaded from the Internet, but if you know that there is no security risk in the file, then such a message is meaningless.

I can guide you if you turn off this prompt, but please make sure that the source of all files downloaded from the Internet is secure.

1. Search for Internet Options in the taskbar and open it.

2. Click "Security" and then "Custom Level":
   

3. In the displayed page, find "Launching applications and unsafe Files (not secure)", then click "Enable", then click "OK" to save the changes.

    

Now, you should not see this message anymore.

If you are a Windows User, I can actually recommend that you try changing the UAC (User Account Control) Settings.

Search for UAC in the taskbar and open it. Drag the slider to "Never Notify" and click "OK."

Once this is done, many user account control prompts will no longer appear.

Found here: How to Turn off "Open File - Security Warning" message for a specific - Microsoft Community

You cannot use an ICO file that is located on a network folder (It must be on a local drive), otherwise it will not show. This is for a mapped drive or a UNC folder.

There are 2 ways to fix this issue. Group Policy or Registry entry.

Found here: Shortcut Icon blank when .ico file is located on a directory defined with an UNC Path - Microsoft Q&A

Delete Files Older Than X Days with ForFiles Command

You can quickly delete files older than X days with ForFiles Command. Follow the given steps below to use CMD delete files older than x days：

Step 1. Left-click the Windows main menu and search for Command Prompt. Right-click the result and select the "Run as administrator" option.

Step 2. Type in ForFiles /p "C:\path\to\folder" /s /d -X /c "cmd /c del /q @file" to delete files on Windows that haven't been modified in the last X days and press Enter. In the command, change "C:\path\to\folder" specifying the path to the folder you want to delete files and change /d -X to select files with a last modified date.

ForFiles command breakdown

/p - indicates the pathname to start searching.

/s - instructs ForFiles to search inside subdirectories.

/d -specifies the last modified date for a file.

/c - instructs ForFiles to execute the command (must be wrapped in double quotes). The default is "cmd /c del @file".

/q -allows deleting folders without requiring confirmation.

It is possible to have 3 states when it comes to OneDrive files.

• Always available
• Locally available
• Online-only

See this link for full details: Set Files On-Demand states in Windows - SharePoint in Microsoft 365 | Microsoft Learn

I'm backing up some files that would fill up the C drive so each time I backup a file I unpin it. My OneDrive can hold 5TB so now I can keep lots more data when unpinned.

This is an example of how to unpin locally and save space. This is excellent in batch files for multiple files/folders.

attrib +u "C:\Users\[username]\OneDrive - [Company Name]\[FolderName]\*.*"

This can also be accomplished by using the right click menu in Windows Explorer.

When you try to connect to join a domain on any Windows operating system or after entering a username and correct password, you may receive an error with the message “the specified domain either does not exist or could not be contacted”.

This “the specified domain does not exist or could not be contacted” error is usually due to invalid DNS settings on the workstation, as Active Directory requires domain DNS (not the router’s address) to function properly. The error can also occur because IPv6 does not work.

Go to Control Panel. Network and Sharing Center - Chang adapter settings - Properties and uncheck IPv6. Note that in Windows 11 this is the ONLY way to disable IPv6!

You're Very Welcome :-)

From here: https://serverfault.com/questions/396722/your-system-administrator-does-not-allow-the-use-of-saved-credentials-to-log-on

If you don't want to change local or server side GPOs:

Go to Control Panel -> Credential Manager on the local computer you are trying to connect from.
You will see three sections:

1. Windows Credentials
2. Certificate-Based Credentials
3. Generic Credentials

Remove the credentials from Windows Credentials and add it to Generic Credentials.

Question and solution here: https://superuser.com/questions/402070/run-task-scheduler-task-on-demand-from-limited-user-account-in-windows-7

Go to C:\Windows\System32\Tasks find the related task and assign "read and execute" rights to the user you want to be able to access it. Be sure to assign to "current object only." Then the task will be visible and runnable from the limited user, and it will work if you saved your credentials in it and checked "run whether user is logged on or not."

From here: https://social.technet.microsoft.com/Forums/exchange/en-US/46e1cd52-52b3-4427-88a3-200f87319e23/remote-desktop-authentication-error-has-occurred-the-function-requested-is-not-supported?forum=w7itpronetworking 

Here is the FIX for this issue ..

Change the Group Policy on your local client to use the vulnerable setting 

Run:  gpedit.msc

Go to à Computer Configuration -> Administrative Templates -> System -> Credentials Delegation -> Encryption Oracle Remediation

Open - Encryption Oracle Remediation à  choose Enable  à change protection level àVulnerable à Apply

Specificy for Windows 7.

Please try Disable the generation of thumbs.db files by the Local Group Policy Editor and your problems will be resolved. They are only generated for compatibility with outdated applications, and are most certainly NOT needed for Windows operation.

Run "Group Policy" - select Edit Group Policy when it comes up.

> User Configuration
> Administrative Templates
> Windows Components
> Windows Explorer

From here: https://blogs.technet.microsoft.com/enterprisemobility/2009/07/01/using-multiple-monitors-in-remote-desktop-session/   

If your RDP's "Use all my monitors for the remote session" is disabled you can get around it as follows.

1. Create an RDP file with your specific connection.
2. Right click on the .rdp file and select Open with Notepad.
3. Add the following 2 lines to the bottom.

span monitors:i:1
use multimon:i:1

4. Save and then use!

Have a great day!