Applications should use the RunOnce key only for transient conditions, such as to complete application setup. The value name of RunOnce keys can be prefixed with an asterisk (*) to force the program to run even in Safe Mode.Ī program that is run from any of these keys should not write to the key during its execution because this will interfere with the execution of other programs registered under the key. Without the exclamation point prefix, if the RunOnce operation fails, the associated program will not be asked to run the next time you start the computer.īy default, these keys are ignored when the computer is started in Safe Mode. You can prefix a RunOnce value name with an exclamation point (!) to defer deletion of the value until after the command runs. HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnceīy default, the value of a RunOnce key is deleted before the command line is run.HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run.HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce.HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run.
The Windows registry includes the following four Run and RunOnce keys: If more than one program is registered under any particular key, the order in which those programs run is indeterminate. You can write multiple entries under a key. Register programs to run by adding entries of the form description- string= commandline. The data value for a key is a command line no longer than 260 characters. These keys can be set for the user or the machine. The Run key makes the program run every time the user logs on, while the RunOnce key makes the program run one time, and then the key is deleted. No signup required.Use Run or RunOnce registry keys to make a program run when a user logs on. The free audio converter does not expire and includes most common audio file formats. A free version of Switch is available for non-commercial use.
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