How to Replace a Word in Regedit
Modifying your registry (regedit) to replace a key's value may be necessary if a program is malfunctioning or you want to edit a setting that is only configurable through the registry. It's not recommended to edit the registry because mistakes can cause damage to your computer system. If necessary, you can use the built-in Windows tool "Registry Editor" to access and change registry values.
Instructions
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Open the Registry Editor by clicking the Windows "Start" menu, clicking "Run," typing "regedit" in the search box and clicking "OK."
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Navigate through the registry branches in the left window until you locate the registry key you want to replace. For example, you may click "HKEY_LOCAL_MACHINE", "SOFTWARE", "Microsoft", "Direct3D", "Drivers" and then the "SoftwareOnly" key. Alternatively, you can type the key name in the "Find" box from the "Edit" menu to automatically locate the key.
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Right-click the registry key and select "Modify." If the key's type is "REG_DWORD", select "Hexadecimal" or "Decimal" then enter a numerical value. Hexadecimal is base-16 while decimal is base-10. If the key's type is "REG_SZ" then simply enter a new string text value for the key. If you want to replace the key entirely, right-click it and select "Delete." Once it is deleted, right-click in the open space, select "New," "Key" and then enter the new value.
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Exit the Registry Editor by clicking the "File" menu and selecting "Exit." You may need to reboot your system before your modified registry value takes effect.
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