Computer Fundamentals Index

Computer Introduction Types of computer Characteristics of computer Uses of computer History of Computers

Computer Languages

Low Level language Middle level Language High level language

Computer Generation

Generation of Computers First Generation of Computer Second generation of Computers Third generation of Computers Fourth generation of Computers Fifth generation of Computers Sixth Generation of Computer

Peripheral Devices

Input devices Output device

Components

Block diagram and basic components Control processing unit (CPU) Software Hardware

Memory

Computer Memory Registers Memory Hierarchy RAM Vs ROM Understanding file sizes (Bytes, KB, MB, GB, TB, PB, EB, ZB, YB)

Computer Network

Types of Network Types of Area Networks (LAN, WAN, MAN) TCP Flags

Computer Virus

Computer Virus

Computer Ports

Computer Ports

How

How to hack a computer How much do Computer Programmers make How does a Computer work How to associate a file with a program How does a computer convert text into binary How does a computer process data into information How to fix a CD-ROM DVD How to fix the no input signal How to install computer memory How to associate a file with a program How to log out of your operating system How do I change my name on Google How to installation or uninstallation Microsoft Paint How to fix a not a valid Win32 application error How to fix missing Microsoft Windows .dll files How to use a computer keyboard How to erase my hard drive and start over How can I test how many words I can write a minute How to shut down a computer How do I open and edit the Windows registry How to edit the registry from the command line How to restart Microsoft Windows How to install a computer processor How to open Microsoft Paint How to fix problems in Windows after installing new software How to enable or disable the preview pane of Microsoft Outlook How to open a Microsoft .wps or Works file in Word How to view the HTML source code in Microsoft Word How to View or Change the Screen Resolution of a Monitor How to Connect and Install a Computer Keyboard How to Delete Temporary Files in Windows 10 How to determine Which Version of Microsoft Office I'm using How to find out how much hard drive space is available How to Fix PC Stuck on Verifying DMI Pool Data How to choose which items show in the notification area How to find similar images using Search by Image How to fix Low Memory and out of memory errors How To Replace the CMOS Battery How do I Update my Antivirus Program How to fix a general protection fault How to Identify problems in the Windows Device Manager How can the Base be Shown How to test if a Website or Web Page is down How Much is 1 Byte, Kilobyte, Megabyte, Gigabyte, etc How to fix a CMOS checksum error How to Fix a Windows CD-ROM, DVD, or Disc Drive Issue How to Open Safe Mode How to Password Protect Files and Folders in Windows How to Reset CMOS or BIOS Settings How to use Computer Keyboard How to create a text file How to enable or disable DHCP in Windows How to test computer memory to determine if its bad How do double space or change line spacing in Microsoft Word How do I know if I have Windows Administrator Rights How many cores does my computer have How to Create a Directory or Folder How to Enter and Exit the BIOS or CMOS Setup How to change Windows Compatibility mode How to clear your internet browser history How to Connect Computer Speakers How to Copy a Web Page Link or URL How to install a Hard Drive or SSD How to Open the Windows Control Panel How to split a screen in Windows How to copy text from a scanned PDF

Questions

Who invented Computer What are the advantages of the Internet? What are the disadvantages of the Internet? Is my computer 64 bit? What is Edge Computing? What is a Router? What is Monitor What is Printer What is a Web Browser What is Microphone What is a Webcam What is PC What is Keyboard What is Motherboard What is WAP What is URL What is a Digital Assistant When was the first Computer Invented What is Modem What is Firmware What is Imperative Programming What is Protocol What is Safe Mode What is Device Driver What is Hybrid Topology What is Mesh Topology What is Procedural language What is a hyperlink What is a Username Who invented the Internet What is Video Card What is Sound Card What is Binary What does Alt+B do What does Alt+D do What does Alt+E do What does Alt+Esc do What does Alt+R do What does ALT + Q do What does Alt + Tab do What is Data Manipulation What is a touch screen What is Back Panel What is Analog Monitor What is AR lens What is an ATX Style Connector What is a File System What is Hard Disk Drive (HDD) What is a boot device What is accessibility What is Line In What is network Interface card (NIC) What is Optical Disk Where can I ask questions on the internet What is Auto Rotate What is CAD (Computer-aided design) What is Cable Modem What is Home Page What is boot menu What is braille reader What is flash memory What is Windows What is Clipboard What is Cyber Warfare What is Myspace Why has my IP address changed What is Jacquard Loom My computer is running slow, what steps can I do to fix it What is a Kensington Lock What is a multicore processor What is automation Are smartphones and tablets computers What is a Login Script What is a Loosely Typed Language What is Multitasking? Why my computer monitor shows no display or black screen What is REM What is Parallelization What is Overtype mode What is open with What is Bracket What is an Online Service What is REM What is Parallelization What is Overtype mode What is open with What is Bracket What is an Online Service What is the Pg Dn Key (Page Down Key) What is the Pg up Key (Page up Key) What is Palmtop Computer What is a Processing Device What is a Print Preview What is the Print Screen Key What can I do if my computer or laptop is lost or stolen What is a Model Number What are the currently available antivirus programs What are Toggle keys What is a Case fan What is a Silicon Chip What is a Slate PC What is a TAB stop What is an Octothorpe What is Task Pane What is Task View What is the svchost.exe file used for in Windows Where can I find free online virus scanners Why am I unable to increase the resolution in Windows What is Autofill When I click my mouse, it sometimes double-clicks What is Scratch What is UDIMM What is MsConfig What is an Expansion Card What is an Executable File What is an Elevated Command Prompt What is an AC Adapter What is AIMBOT What is a Software Suite What is a LED Monitor What does Alt + X do What does alt + space do What does Alt + O do Now that I’ve got a Computer, what can i do What is a Punch Card What is RDIMM What is Select All What is Serial number What is Thermos flask What programs can I use for speech recognition What are the Advantages of Computers What are the Disadvantages of Computers What does Alt + T do What Hardware Device Drivers should be Updated What is a Desktop What is a Ring Topology What is CMOS What is a Directory What is a Mechanical Mouse What is a Plotter What is a Variable What is an Icon What is Data What is HDMI What is Remote What is Right-Click What is SMPS Why does my Laptop not turn on What is a Copyright What is a Cordless Mouse What is a CSV file What is a Joystick What is a Start Button What is a Taskbar What is an Alignment What is an Output Device What is Cat 5 What is Google Chrome What is Post What are Recordable DVD Drives What Does Alt + F4 Do What Does Alt + L Do What is a bit (Binary Digit) What is a cable What is a Calculator What is a capacitor What is a Cold Boot What is a Dialog Box What is a Dual-boot What is a Slide What is A4 What is AM What is Barcode Reader What is EHCI What is a Header What is a Joystick What is a Secondary Storage Device What is Access Time What is Account Sharing What is an Asterisk What is Asynchronous DRAM What is Back Quote What is BIOS What is Borderless Printing What is Case Badge What is CD-ROM What is Chat Slang What is Composite What is RJ Cable What Are Bottom Row Keys What is SAN What is Tray What is VDU What Does Alt + M Do What Does Alt + P Do What is a Cell What is a Command Key What is a key Combination What is a Menu Bar What is a Startup What is a T What is Chat What are the F1 through F12 keys What does Alt + Enter do What Does Alt + Home DO What does Alt + R do What does Ctrl + B do What Does Ctrl + Enter Do What Does Ctrl + R Do What does Ctrl + G do What does Ctrl + 9 do What does Ctrl + End do What does Ctrl + O do What Does Ctrl + P do What Does Ctrl + Q do What is a Colon What is a Core What is Apple Touch Icon What is Clock What is Code What is Computer Crime What is Ctrl What is DAT What is Data diddling What is Date Why won't my computer turn on What Does Alt + N Do What does ctrl + 2 do What does ctrl + space do What does Ctrl + W do What does Ctrl + T Do What Does Ctrl + 2 do What does Ctrl + 5 Do What are the most common file types and file extensions What are Sticky keys What Does Ctrl + Shift + Esc Do What is Settings What is Task Manager What is Taskbar What is a DNS Resolver What does ctrl + 1 do What does ctrl + 0 do How to install software What is a Folder What is a Legend What is a MAC Address What is a Path What is a Ruler What is a Toolbar What is an Intranet Meaning and Differences with Internet What is an SSD What is Inheritance What is Tablet What is Depth What is Docking Station What is Double Click What is a Solid Ink Printer What is a Temporary File What is Backup and Restore What is Electronic Payment Systems Eps What is Marshalling

Difference

Difference between hardware and software Difference between multiprocessor and distributed systems Difference between Desktop and Laptop Difference between File and folder Difference between Hard Copy and Soft Copy Open Source Programs vs Closed Source Programs Difference between Optical Fibre and Coaxial Cable Difference between Website and Webpage Difference between Classes and Objects Input VS Output Difference between Primary and Secondary Storage with Examples

Misc

Quantum Computing Computer Software Autoexec.bat and config.sys info Update an Antivirus Use of Internet Advantages and disadvantages of Email Computing Power Internet Explorer Shortcut Keys Advanced Encryption Standard (AES) Augmented Reality Infrastructure Readiness Check Top 10 Internet tips and tricks Introduction and Features of FoxPro Features of Multimedia Top 10 online services and applications Receiving S.M.A.R.T. status bad backup and replacing error Version Control System Uninstalling Software or Apps in Windows Data Warehouse Increase or decrease font size in Word using keyboard shortcuts Mouse not detected or working in Windows Computer Cleaning Information and Steps Function Keys on Keyboard Windows 7 Alt+Tab won’t stay on top or stick 10 Essential Examples of Web Browsers Binary Subtraction using 2’s Complement Case Sensitive Languages Computer Pioneers and people who are CEO Microsoft Word Shortcut Keys Parts of Computers Names, Definitions and Images ROM and its Types Basics of Information Technology Characteristics of a Good Software Design Characteristics of Management Information System Classification of Management Information System Implementation of MIS Input Devices of Computer Definition Limitations of Management Information System 3 Types Of Network in Computer Block Diagram Of Control Unit Difference Between Computer and Embedded System Difference Between Hard Disk and Floppy Disk Abstraction in OOAD Hardware and Software Devices Optomechanical Mouse CMOS Memory What is a Terminal? What is Graphic Design? What is Load? What is Passcode? What is Reboot? What is Registry? What is Safe Mode? What is Standby? What is SYN (Synchronize)? What is Task Manager? Attribute Computing BPS in Computer Bulletin Board System Light Pen Input Device 3 TYPES OF NETWORK IN COMPUTER Block diagram of control unit What is a Solid Ink Printer? What is a Temporary File? What is an App launcher? What is Backup and Restore? What is a Tab Character? What is the Core i3? What is Paint? What is a Workbook? Advantages and Disadvantages of Online Education What is a String? What is a VDU (Visible Display Unit)? 50 Uses of Computer What is Workspace? What is a Procedural Language? What is VGA (Video Graphics Array)?

How do I open and edit the Windows registry

Before knowing how to open and edit the windows registry, let's understand what a registry is. The registry is a central database that consists of information, applications, hardware, and software installed on Microsoft Windows. The registry is installed in an operating system.

Whenever we try to fix windows errors or modify the features of Windows, then we require to edit the Windows registry.

How to open the Windows registry

Every windows version has a different methodology for opening its registry. Follow the steps that are given below to open it.

Windows 11

  • Select the lens icon on the Windows taskbar.
How do I open and edit the Windows registry
  • In the search window at the top, explore the text field, type "regedit," and click enter.
  • When the “User Account Control dialog box” is spotted, to open Registry Editor click the "Yes" option.
  • Now the window of Registry Editor is opened, similar to the below figure.
How do I open and edit the Windows registry

Windows 10

  • For Windows 10, also select the Windows search box, type "regedit" on the taskbar, and click enter.
  • When the “User Account Control dialog box” is spotted, to open Registry Editor click "Yes" option.
  • Now the window of Registry Editor is opened, similar to the below figure.
How do I open and edit the Windows registry

Windows 8

  • Select the Start icon, type "regedit", and then select in the search results for the regedit option.
  • When the “User Account Control dialog box” is spotted, to open Registry Editor click "Yes" option.
  • Now the window of Registry Editor is opened, similar to the below figure.
How do I open and edit the Windows registry

Windows 7 and earlier

  • Select start and then click the Windows key.
  • Then in the start menu in the search box or run box, type "regedit" and click enter.
  • When the “User Account Control dialog box” is spotted, to open Registry Editor click "Yes" option.
  • Finally, Windows Registry Editor will be opened.

Open Register Editor in Windows in 5 ways

1. By Run Command

Press the "Windows key + R" then write the "regedit" followed by pressing the enter key.

How do I open and edit the Windows registry

2. By Windows Search

In the windows, in the taskbar, press the start menu, then in the search box, type "registry" or directly press "Windows+ S" to get the search box. In the end, the Registry editor will be opened.

How do I open and edit the Windows registry

3. By Command Prompt or PowerShell

When users are already working with the Command Prompt, write “regedit” and press enter key.

How do I open and edit the Windows registry

4. By creating a Shortcut

If a registry is in frequent use, then creating a shortcut would be more beneficial because it would save time.

To do this, press the "Windows key + R". After that, type in C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Administrative Tools.

Currently on the Registry Editor, press the right-click, then a menu is seen in that click on the Create Shortcut. Then you can create a shortcut from a prompt window as seen on your desktop.

Then you can place it on the desktop through drag and drop, or else you can also pin it to taskbar.

How do I open and edit the Windows registry

5. By assigning a keyboard Shortcut

One more option for a frequent user of Editor is to right-click on the shortcut after creating the shortcut and click on "properties", select the shortcut tab and click the shortcut key and select any key, whatever keys you have pressed that will be your keyboard shortcut.

How do I open and edit the Windows registry

Browsing the Windows Registry

Whenever the registry is edited by the users, the location of the registry value is given to them. By following that path, users can edit the values. The path looks like the following figure.

How do I open and edit the Windows registry

To get through the location, first, open the "HKEY_LOCAL_MACHINE" key. Then select SOFTWARE, Microsoft, Windows, CurrentVersion, and Run folder.

Here every backslash(‘\’)  represents a folder.

Editing Windows registry value

For editing the value present in a registry, double-click the value that should be edited. As in the below figure, when double-clicking on the Quick heal value, an "Edit String" named dialog box is opened where we can make necessary modifications such as changing the value name and value data.

How do I open and edit the Windows registry

Deleting a registry value

For deleting the value of a registry. Select the registry name that you want to delete. Then press the delete key on the keyboard.

Shorthand and abbreviations of Windows registry

Every time writing full names of registry values will be tedious, so we instead use abbreviations. For example, we use "HKLM" to denote "HEY_LOCAL_MACHINE".

Still, there are many shorthands that we can get in the registry definition.

Warning:  While editing the registry, maintain most caution because editing the registry incorrectly might cause serious problems, such as we require to completely reinstall an operating system, and there might be data loss. So, to protect your device, avoid messages suggested by unofficial sites. For even more protection, first, make sure that you back up your registry and follow the documentation published by Microsoft. After this, you can restore data if a problem occurs. For more guidance, refer to "How to back up and restore the registry in Windows".

In the above discussion, we have used some registry root keys, so let's know their use.

Registry root keys

These keys consist the information about the file extension, hardware and software installed programmatic identifier, interface ID, keys, values, and subkeys.

Let's look at some specific Registry root keys:

             Root Key             Description
HKCR(HKEY_CLASSES_ROOT)Specifies the type and extension of the file along with OLE information.
HKCU(HKEY_CURRENT_USER)Consists of the user who ever logged in to the settings, windows.
HKLM(HKEY_LOCAL_MACHINE)Consists of information about the computer software and hardware. Users who will log on to the laptop or computer can use the information. This HKLM is mostly edited and viewed by the users.
HKU(HKEY_USERS)All the user's generic and specific information is present.
HKCC(HKEY_CURRENT_CONFIG)The current hardware configuration which is attached to the computer is present.