Windows Interview Questions and Answers in 2025 (100+ Q&A)

Windows

Ques:- What is defragment ?

Right Answer:
Defragmentation is the process of reorganizing fragmented data on a hard drive so that files are stored in contiguous sections, which improves access speed and overall system performance.

System Administrator Windows

Ques:- How to admin mail server, How to admin Spam filter, How to control Microsoft DC and ADC. For to configure firewall and UTM device

Asked In :- goodix technology inc., robins air base,

Right Answer:
To administer a mail server, ensure proper configuration of SMTP, IMAP/POP3 settings, manage user accounts, and monitor logs for issues. For spam filtering, implement rules and policies, use blacklists, and configure whitelists to allow trusted senders. To control Microsoft Domain Controller (DC) and Additional Domain Controller (ADC), manage user accounts and permissions through Active Directory Users and Computers, and ensure replication is functioning correctly. For firewall and UTM device configuration, define security policies, set up rules for inbound and outbound traffic, and regularly update firmware and threat definitions.

Fresher Windows

Ques:- Difference between NTFS and FAT file systems.

Asked In :- esg consulting,

Right Answer:
NTFS (New Technology File System) supports larger file sizes, better security features, and file permissions, while FAT (File Allocation Table) is simpler, has faster access times for small files, but is limited in file size and lacks advanced features like security and journaling.

Software Quality Assurance Analyst Windows

Ques:- What do you like about Windows?

Asked In :- SSA, Red Canary, c.h. robinson,

Right Answer:
I like Windows for its user-friendly interface, wide compatibility with software applications, strong support for hardware, and regular updates that enhance security and performance.

System Administrator Windows

Ques:- What level of security does Windows NT meets?

Asked In :- phillips 66,

Right Answer:
Windows NT meets the security requirements of the C2 level of the Trusted Computer System Evaluation Criteria (TCSEC).

Project Leader/ Project Manager Windows

Ques:- How to identify the difference between the kernel object and user object?

Asked In :-

Right Answer:
Kernel objects are managed by the operating system and provide system-level resources like processes, threads, and synchronization primitives. User objects are created and managed by user applications and include items like windows, menus, and user-defined data structures. The key difference is that kernel objects operate at the system level, while user objects operate at the application level.

System Administrator Windows

Ques:- How to list all the hidden files?

Asked In :- Rheal Software, Beacon Platform, trilegal,

Right Answer:
To list all hidden files in Windows, open Command Prompt and use the command:

```
dir /a:h
```

System Administrator Windows

Ques:- I forget the startup password on Windows XP how to remove?

Asked In :- hitachi rail europe, kaizen technologies,

Right Answer:
To remove the startup password on Windows XP, you can boot into Safe Mode by pressing F8 during startup, then log in as the Administrator. Once logged in, go to Control Panel > User Accounts, select your account, and remove the password. If you can't access Safe Mode, you may need to use a password reset disk or third-party software to reset the password.

Technical Support Engineer Windows

Ques:- Is Windows NT a full blown object oriented operating system? Give reasons

Asked In :- Infinite Computer Solutions India, DIGICOMM Semiconductor, Exide Industries, Valiance Solutions, Reflections Info Systems, ESJ, K Line Ship Management, Vahan, Auro, Tcg Lifesciences Ltd,

Right Answer:
No, Windows NT is not a full-blown object-oriented operating system. While it incorporates some object-oriented concepts, such as the use of objects for system resources and a modular architecture, it does not fully adhere to object-oriented principles like encapsulation, inheritance, and polymorphism throughout its design.

Maintenance Engineer Windows

Ques:- What happens when the CloseHandle(handle) is called?

Asked In :- cumulus systems,

Right Answer:
When CloseHandle(handle) is called, it closes the specified handle and releases the resources associated with it. If the handle is a valid object, it will be marked for deletion, and if it is the last reference to that object, the system will clean up the associated resources.

System Administrator Windows

Ques:- What is difference between win 98 and win 2000 poertating system?which is better one?

Asked In :- brennan it, emv,

Right Answer:
Windows 98 is a consumer-oriented operating system primarily designed for home users, while Windows 2000 is a more robust, business-oriented OS with better stability, security, and support for networking and multi-user environments. Windows 2000 is generally considered the better option for professional use due to its advanced features and reliability.

System Security Engineer Windows

Ques:- How many hard drives do we generally can accommodate in a pc?

Asked In :-

Right Answer:
Typically, a standard PC can accommodate 1 to 4 hard drives, depending on the motherboard and case design.

System Security Engineer Windows

Ques:- You have a computer with 80GB hard disk and ubuntu 8.04 is installed on entire hard disk.now you have to create a seprate partition for windows OS and install win XP as dual boot.write down the steps involved along with the commands

Asked In :- Cadent Gas,

Right Answer:
1. **Backup Data**: Ensure all important data is backed up.

2. **Boot from Live CD/USB**: Insert an Ubuntu Live CD/USB and boot from it.

3. **Open GParted**: Open a terminal and run:
```
sudo gparted
```

4. **Resize Ubuntu Partition**:
- Select the Ubuntu partition (usually ext3 or ext4).
- Right-click and choose "Resize/Move".
- Shrink the partition to create space for Windows (e.g., 20GB).
- Click "Resize/Move" and then "Apply".

5. **Create NTFS Partition**:
- In the unallocated space, right-click and select "New".
- Choose "NTFS" as the file system.
- Name the partition (e.g., "Windows").
- Click "Add" and then "Apply".

6. **Install Windows XP**:
- Insert the

Technical Support Engineer Windows

Ques:- What is signaled and non signaled state?

Asked In :- Adnate IT Solutions, Vanderlande Industries, Primus Techsystems, Haldor Topsoe, C-Square Info Solutions, Emvigo Technologies, AMD Telecom, Naico Information Technology Services, OSM Maritime Group, Eon Technologies,

Right Answer:
In the context of Windows operating systems, a signaled state means that a thread or process can proceed because a specific condition has been met or an event has occurred, while a non-signaled state indicates that the thread or process must wait because the condition has not been met or the event has not occurred.

System Integrator Windows

Ques:- What is the difference between the *system tray* and the *quick launch tray*?

Asked In :- Comviva, brennan it,

Right Answer:
The system tray, also known as the notification area, is part of the taskbar that displays icons for background applications and system notifications. The quick launch tray is a section of the taskbar that allows users to quickly access frequently used applications by clicking their icons.

System Administrator Windows

Ques:- What are the Advantages of using software deploymentservices in domain ?

Asked In :- Smart Joules, epicenter,

Right Answer:
The advantages of using software deployment services in a domain include:

1. Centralized Management: Allows administrators to manage software installations from a single location.
2. Automated Deployment: Enables automatic installation and updates of software across multiple machines.
3. Consistency: Ensures that all users have the same version of software, reducing compatibility issues.
4. Time Efficiency: Saves time by deploying software to multiple devices simultaneously.
5. Reduced Errors: Minimizes manual installation errors and configuration issues.
6. Compliance: Helps maintain software compliance and licensing across the organization.
7. User Convenience: Reduces the need for users to manually install software, improving productivity.

System Administrator Windows

Ques:- How do you check wheather the NIC card is properly installed or not in Win XP?

Asked In :- premier foods,

Right Answer:
To check if the NIC card is properly installed in Windows XP, go to Control Panel > System > Hardware tab > Device Manager. Look for "Network adapters" and check if the NIC card is listed without any warning icons (like a yellow exclamation mark).

System Integrator Windows

Ques:- When I tried to make a corrections to some text, all the letters/words to the right disappeared as I typed in the corrections. What happened?

Asked In :- First Zen, technumen inc,

Right Answer:
You likely have "Overwrite" mode enabled instead of "Insert" mode. Press the "Insert" key on your keyboard to switch back to Insert mode, which will allow you to type without deleting the text to the right.

System Integrator Windows

Ques:- What's the difference between windows serevr 2003 or windows XP.

Asked In :- rockstar games, stratus technologies, sioux,

Right Answer:
Windows Server 2003 is designed for server environments, providing features for managing networks, hosting applications, and supporting multiple users, while Windows XP is a client operating system focused on individual user experience and desktop functionality.

Maintenance Engineer Windows

Ques:- How the handles are handled in the child process?

Asked In :- Krishna Maruti Ltd, tata communications transformation services (tcts), tsi,

Right Answer:
In a child process, handles are inherited from the parent process by default. However, the child process can also create new handles or close inherited handles as needed. To control handle inheritance, the parent can set the `bInheritHandle` parameter to `FALSE` when creating a handle, preventing it from being inherited by the child process.

Microsoft Windows is one of the most widely used operating systems in the world, developed by Microsoft Corporation. It provides a graphical interface that enables users to interact with their computers and perform a wide variety of tasks. Since its first release in 1985, Windows has evolved from a basic graphical user interface (GUI) layered over MS-DOS into a fully-featured operating system that powers personal computers, tablets, and even some embedded systems.

Windows is known for its user-friendly environment. The modern versions offer a clean desktop interface, a taskbar for quick access to programs, a Start menu for navigation, and system notifications. These elements are designed to make computing more intuitive and accessible for both novice and experienced users. In addition to personal and professional use, Windows supports a vast array of third-party software applications, making it one of the most flexible operating systems available.

One of the biggest strengths of Windows is its backward compatibility and support for a wide range of hardware configurations. This has helped it become the go-to operating system for businesses, educational institutions, and home users alike. Windows also includes built-in utilities such as File Explorer for managing files, Microsoft Edge as the default web browser, and Windows Defender for basic antivirus protection.

Over the years, Windows has seen many major versions. Windows 95 introduced the iconic Start menu and taskbar. Windows XP brought stability and a refined interface. Windows 7 became one of the most beloved versions due to its performance and ease of use. Windows 10 combined the best features of previous versions and introduced new tools like Cortana, virtual desktops, and integration with Microsoft services such as OneDrive. The current release, Windows 11, features a centered Start menu, redesigned UI, better support for gaming, and deeper integration with productivity tools.

Security has always been a critical focus in modern versions of Windows. With features like BitLocker encryption, biometric login with Windows Hello, and regular security updates, Microsoft aims to provide a safe computing environment. For developers, Windows supports a wide variety of programming languages and tools, including support for Linux through the Windows Subsystem for Linux (WSL), making it a favorite among software professionals.

Windows also plays a key role in the broader Microsoft ecosystem. It works seamlessly with Microsoft Office, Azure cloud services, Xbox, Teams, and more, enabling users to stay connected and productive across platforms and devices. The Microsoft Store offers a centralized hub to download apps, games, and services, while enterprise-level versions of Windows offer tools for system administrators and IT professionals to manage large-scale deployments.

In summary, Microsoft Windows is more than just an operating system — it is a versatile platform that has shaped how people use computers for work, communication, and entertainment. With its continued innovation and global support, Windows remains an essential part of the digital experience for billions of users worldwide.

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