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The error messages could be caused by Antivirus/Anti-Malware software that has the file locked. Disable the Antivirus/Anti-Malware software running on your computer system. Set it to not perform any scanning of files with these extensions: scid and dly. Or make sure the folder Sierra Chart is installed to is excluded from being scanned by the Antivirus/Anti-Malware software program you are running. After doing one or more of these, then restart Sierra Chart.

A good indication that this is the cause, is if you receive this error: Windows error code (32): The process cannot access the file because it is being used by another process.

Sierra Chart may need to be run with Windows Administrator account privileges/credentials. The reason for this requirement will be if you have installed Sierra Chart into the Windows Program Files folder. Potentially there can be other Windows related considerations as well which will require this. Follow these steps to run Sierra Chart with Administrator privileges/credentials.

Right-click the icon on your desktop that you use to run Sierra Chart, and then select Properties.
On the Compatibility tab, enable the Run this program as an administrator check box, and then press OK.
Run Sierra Chart again by opening that icon you changed the properties for.

If you have installed Sierra Chart into the Program Files folder on your system which is not the default installation folder, then writing to files in that folder may get blocked by the operating system. There can be all kinds of various problems with this including settings not getting saved.

It is not recommended to install Sierra Chart to the Program Files folder on your system. By default Sierra Chart will not be installed into Program Files on your system. The Program Files folder is a protected folder on Windows Vista, 7, Server 2008-2012, 8, 8.1, 10.

If you have been directed to this section of the documentation and you have installed Sierra Chart into the Program Files folder, then move it to a different folder on your system that your Windows account has access to. This generally will be \SierraChart on the drive you want to install Sierra Chart to on your system.