FAQs
This error indicates "Access is denied". You may see this error when when attempting to use an already open COM port, it's been used by other program. You could try close other software that may be using the port in the Task manager, and try again.
How to fix system error 5 access denied? ›
If you get a system error 5 in Command Prompt or PowerShell, run those utilities with admin privileges to fix your error. To do that, first, open your PC's "Start" menu. Here, find "Command Prompt" or "PowerShell". Then, right-click your utility and select "Run as Administrator."
How to fix COM port error? ›
How to Reset com ports Windows 10
- Step 1: Hit Win+R (write regedit then click Enter).
- Step 2: Search through folders: ...
- Step 3: Located in the right panel, double-click the right click ComDB. ...
- Step 4: Enter all zeros to reset.
- Step 5: Click OK after confirming changes, and now the ports are reset.
What does error 5 mean? ›
The error code 5 is the windows error code which means that Access has been denied to execute that file.
What is error code 5 on access denied com port? ›
This error indicates "Access is denied". You may see this error when when attempting to use an already open COM port, it's been used by other program. You could try close other software that may be using the port in the Task manager, and try again.
How to fix error access denied? ›
Right-click the file or folder, and then click Properties. Click the Security tab. Under Group or user names, click your name to see the permissions you have. Click Edit, click your name, select the check boxes for the permissions that you must have, and then click OK.
How do I clear or reset my COM port? ›
You can also remove COM ports by:
- Clicking Start.
- Selecting Run.
- Typing regedit and clicking OK.
- Navigating to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\COM Name Arbiter.
- Selecting all in the Data section.
- Selecting Reset to zero (0)
- Closing the registry editor.
- Restarting your computer.
How do I change my COM1 port settings? ›
To change the COM port settings on a Windows computer go to ' Start ' > ' Control Panel ' > ' Device Manager ' > ' Ports ' > ' Communication Port (COM1) ' At this point right click and choose Properties and go into the Port Settings tab.
How do I know if my COM port is blocked? ›
Check Blocked Ports in Firewall via Command Prompt
- Use Windows Search to search for cmd.
- Right-click the first result and then select Run as administrator.
- Type netsh firewall show state and press Enter.
- Then, you can see all the blocked and active ports in your Firewall.
What is the reason 5 access is denied? ›
Some files may only be accessible through a certain Windows or Mac username, so you may not be able to access them if you are using an access code or username without the proper permission for a given file. On a Mac, you may also get an Error 5 when attempting to copy to the root directory.
The exit code 5 indicates that the command line arguments passed to the test app are invalid. The exit code 6 indicates that the test session is using a nonimplemented feature. The exit code 7 indicates that a test session was unable to complete successfully, and likely crashed.
What is error code 5 on a server? ›
This usually occurs when your Windows user account does not have administrative privileges or when you attempt to access a network location or folder that is protected by using Windows User Account Control security policies.
What is network error 5? ›
The "network error 5" is admittedly vague, but the errors you're being warned about in your Admin Overview indicate you have serious configuration problems with your server (and essentially an incomplete server installation).
What is error status code 5? ›
A 5xx Server error status code means that while the request appears to be valid, the server could not complete the request. If you're experiencing 5xx server errors for your website, you should immediately look at your server.
What is error code 5 on this page is having a problem? ›
Solution to this problem might be to update the browser to the latest version. Also removing Chrome plugins and restarting the browser can help.
What is error from OS 5 access is denied? ›
Agent reported error - OS error [5]: Access denied: This is often an SSO agent service error as it may not be running under domain admin or do not have the admin rights. This can happens if the password was set to expire on the account that is running these services, and the password has expired).
What is error code 5 in getting shared access is denied? ›
If Active Directory operations fail with error 5, you should verify the following points: Security groups in the table are granted the Access this computer from network user right in the default domain controller's policy. Domain controller computer accounts are located in the domain controller's OU.
How to fix error 5 access is denied in Windows 11? ›
Make your account the computer's administrator to fix Access Denied errors. Set the account to an admin in User Accounts settings to gain access. You can also enable the hidden Administrator account in Windows 11 for unrestricted access to files and folders. Switch to this account to bypass severe access problems.