How to edit a Windows registry value. How to delete a Windows registry value. Windows registry shorthand and abbreviations. Additional information. Note If you have restricted access to the Windows computer you're logged in to, you may not be able to access the Windows registry. Additional information How to edit the registry from the command line. How to back up and restore the Windows registry. Windows registry help and support. See our registry definition for further information and related links.
Applies to: Windows 10 - all editions, Windows Server R2 Original KB number: Description of the registry The Microsoft Computer Dictionary , Fifth Edition, defines the registry as: A central hierarchical database used in Windows 98, Windows CE, Windows NT, and Windows used to store information that is necessary to configure the system for one or more users, applications, and hardware devices. Note Security features in Windows let an administrator control access to registry keys.
Note There is a 64K limit for the total size of all values of a key. Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method.
Is this page helpful? Yes No. Any additional feedback? Skip Submit. Contains the root of the configuration information for the user who is currently logged on. The user's folders, screen colors, and Control Panel settings are stored here. This information is associated with the user's profile. This key is sometimes abbreviated as HKCU. Contains all the actively loaded user profiles on the computer. Contains configuration information particular to the computer for any user.
This key is sometimes abbreviated as HKLM. The information that is stored here makes sure that the correct program opens when you open a file by using Windows Explorer. This key is sometimes abbreviated as HKCR. Contains information about the hardware profile that is used by the local computer at system startup. Raw binary data. Most hardware component information is stored as binary data and is displayed in Registry Editor in hexadecimal format.
Data represented by a number that is 4 bytes long a bit integer. Many parameters for device drivers and services are this type and are displayed in Registry Editor in binary, hexadecimal, or decimal format. A variable-length data string. This data type includes variables that are resolved when a program or service uses the data.
A multiple string. Values that contain lists or multiple values in a form that people can read are generally this type. Entries are separated by spaces, commas, or other marks. A series of nested arrays that is designed to store a resource list that is used by a hardware device driver or one of the physical devices it controls. A series of nested arrays that is designed to store a device driver's list of possible hardware resources the driver or one of the physical devices it controls can use.
This data is detected by the system and is displayed in Registry Editor in hexadecimal format as a Binary Value. A series of nested arrays that is designed to store a resource list that is used by a physical hardware device. Data without any particular type. This data is written to the registry by the system or applications and is displayed in Registry Editor in hexadecimal format as a Binary Value. Best Gaming Keyboards. Best Drones. Best 4K TVs. Best iPhone 13 Cases. Best Tech Gifts for Kids Aged Awesome PC Accessories.
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