A desktop support engineer keeps an organisation's computers, laptops, printers, email and accounts working, so everyone else can do their job. It is one of the most common entry points into an IT career in India, and companies in Bangalore, Pune, Chennai, Hyderabad and NCR hire for it every single month.
This guide covers everything in one place: what the role involves, the skills you need, 60 desktop support engineer interview questions with short answers, the current salary in India, and how to find desktop support engineer jobs in major cities.
Table of contents
- What does a desktop support engineer do?
- Skills you need
- Basic desktop support interview questions
- Windows and troubleshooting questions
- Networking questions
- Active Directory and Microsoft 365 questions
- Hardware and printer questions
- Scenario-based questions
- Desktop support engineer salary in India
- Desktop support engineer jobs: Bangalore, Pune, Chennai
- Career path and certifications
- FAQ
What does a desktop support engineer do?
Desktop support (also called end-user support, L1/L2 support or IT support) is the team users call when something on their computer breaks. A typical day includes:
- Installing and configuring Windows, Microsoft Office and business software.
- Fixing slow PCs, blue screens, boot problems and driver issues.
- Resetting passwords and unlocking accounts in Active Directory or Microsoft Entra ID.
- Setting up Outlook, Teams, OneDrive and VPN for new joiners.
- Troubleshooting Wi-Fi, LAN, IP and DNS problems on user machines.
- Installing and fixing printers and scanners.
- Logging and closing tickets in a ticketing tool such as ServiceNow, Freshservice or Jira Service Management, within the SLA.
- Laptop imaging, asset tracking and hardware replacement.
L1 vs L2: L1 engineers handle first contact, simple fixes and escalation. L2 engineers take the harder issues: OS rebuilds, Group Policy problems, network faults, application issues and on-site hardware work.
Skills you need for desktop support
- Operating systems: Windows 10/11 in depth, basic macOS.
- Networking basics: IP addressing, DHCP, DNS, subnet, gateway, ping, ipconfig, tracert.
- Active Directory: users, groups, OUs, password resets, Group Policy basics.
- Microsoft 365: Outlook, Teams, OneDrive, Exchange Online basics, MFA.
- Hardware: RAM, SSD/HDD, BIOS/UEFI, laptop parts, printers.
- Tools: remote support tools (Quick Assist, AnyDesk, TeamViewer), ticketing tools, imaging tools.
- Soft skills: patience, clear communication and writing good ticket notes. Interviewers check this a lot.
Basic desktop support engineer interview questions
1. Tell me about yourself.
Keep it to one minute: your education, any IT experience (even internships or helping friends), the tools you know (Windows, AD, Office 365, networking basics) and why you want a support role. End with what you can bring to the team.
2. What is the difference between L1, L2 and L3 support?
L1 handles first contact and common issues (passwords, Outlook, printers). L2 handles deeper troubleshooting (OS, network, applications). L3 is the expert or vendor level (servers, architecture, bugs in software).
3. What is a ticket and what is an SLA?
A ticket is a recorded request or incident in a ticketing tool. An SLA (Service Level Agreement) is the agreed time to respond to and resolve a ticket, usually based on priority (P1 critical to P4 low).
4. What is the difference between an incident and a service request?
An incident is something broken (Outlook not opening). A service request is something new that the user asks for (new software, access to a shared folder).
5. What is ITIL?
ITIL is a framework of best practices for IT service management. Desktop support mainly uses its incident, request, problem and change management processes.
6. How do you handle an angry user?
Listen without interrupting, acknowledge the problem, give a clear next step and a realistic time, and keep the user updated. Never argue, and never promise something you can't deliver.
7. What is a remote desktop tool? Name a few.
Software that lets you control a user's computer over the network: Microsoft Quick Assist, Remote Desktop (RDP), AnyDesk, TeamViewer and the remote tool built into your RMM or ticketing system.
8. How do you prioritise multiple tickets?
By business impact and urgency: an issue stopping many users or a VIP comes first (P1), then single-user blockers, then routine requests. Follow the SLA and tell users if a delay is expected.
Windows and troubleshooting interview questions
9. A computer is very slow. How do you troubleshoot it?
Check Task Manager for high CPU, RAM or disk usage; look at startup apps; check free disk space; scan for malware; check for pending Windows updates; check disk health (an old HDD is a common cause) and consider upgrading to an SSD or adding RAM.
10. What is BSOD and how do you troubleshoot it?
Blue Screen of Death is a Windows crash caused by a serious error. Note the stop code, check recent driver or update changes, boot into Safe Mode, roll back drivers, run sfc /scannow and DISM /Online /Cleanup-Image /RestoreHealth, test RAM and check the disk.
11. What is Safe Mode?
A startup mode that loads Windows with minimal drivers and services. It helps you remove a bad driver, app or malware that stops normal startup.
12. What does sfc /scannow do?
System File Checker scans protected Windows system files and replaces corrupted ones with a cached copy.
13. What is the difference between FAT32 and NTFS?
NTFS supports file permissions, encryption, large files (over 4GB) and journaling. FAT32 is older, has a 4GB file size limit and no file-level security, but works on almost every device.
14. What is the Windows Registry?
A database that stores settings for Windows, hardware and applications. Edit it with regedit only when needed, and back it up first.
15. What is Event Viewer used for?
It shows system, application and security logs. Use it to find the cause of crashes, failed services, login failures and update errors.
16. How do you fix a "no boot device found" error?
Check BIOS/UEFI boot order, confirm the disk is detected, reseat the drive, check SATA/NVMe mode settings, and use Windows Recovery to run Startup Repair or rebuild the boot files with bootrec.
17. What is a user profile and how do you fix a corrupted one?
A profile stores the user's desktop, documents and settings. If it's corrupted (user gets a temporary profile), back up the data, rename the profile folder and the matching registry key under ProfileList, and let Windows create a fresh profile.
18. What is BitLocker?
BitLocker is Windows full-disk encryption. If a laptop asks for the recovery key, you get it from Active Directory, Microsoft Entra ID or the user's Microsoft account, depending on where it was backed up.
19. How do you update Windows on many machines?
Through central tools such as WSUS, Microsoft Intune / Windows Update for Business or Configuration Manager (SCCM/MECM), instead of updating each PC by hand.
Networking interview questions for desktop support
20. What is an IP address?
A unique address for a device on a network, for example 192.168.1.25 (IPv4). It can be static (set by hand) or dynamic (given by DHCP).
21. What is DHCP?
Dynamic Host Configuration Protocol automatically gives devices an IP address, subnet mask, gateway and DNS server.
22. What is DNS?
Domain Name System converts names like www.microsoft.com into IP addresses. If websites don't open but you can ping an IP, DNS is a likely cause.
23. What is APIPA (169.254.x.x)?
If a PC gets a 169.254.x.x address, it could not reach a DHCP server. Check the cable or Wi-Fi, run ipconfig /release and ipconfig /renew, and check the DHCP server. For a full walkthrough, see Wi-Fi working on phone but not on laptop: 11 fixes.
24. What do ping, ipconfig, tracert and nslookup do?
ping: tests if a host is reachable.ipconfig /all: shows IP, gateway, DNS and MAC address.tracert: shows the path packets take to a destination.nslookup: tests DNS name resolution.
25. What is the difference between a switch and a router?
A switch connects devices inside the same network (LAN). A router connects different networks, for example your office LAN to the internet.
26. What is a subnet mask and a default gateway?
The subnet mask tells which part of an IP is the network and which is the host. The default gateway is the router address a PC uses to reach other networks.
27. What is a VPN?
A Virtual Private Network creates an encrypted tunnel from the user's device to the company network, so remote users can safely reach internal resources.
28. A user has internet but cannot open one internal website. What do you check?
Check DNS with nslookup, flush the DNS cache (ipconfig /flushdns), check the proxy settings, check if VPN is required, and test from another machine to see if it's user-specific.
Active Directory and Microsoft 365 interview questions
29. What is Active Directory?
Microsoft's directory service that stores users, computers and groups and controls logins and permissions in a Windows domain.
30. What is a domain controller?
A server running Active Directory Domain Services that authenticates users and computers in the domain.
31. What is an OU?
An Organizational Unit is a container in AD used to organise users and computers and to apply Group Policies.
32. What is Group Policy (GPO)?
Rules applied centrally to users and computers, such as password rules, drive mappings, wallpaper or software settings. Run gpupdate /force to apply changes and gpresult /r to see which policies applied.
33. How do you join a computer to a domain?
Settings > System > About > Domain or workgroup (or sysdm.cpl), choose Domain, enter the domain name and an account with join rights, then restart.
34. What is the difference between a security group and a distribution group?
Security groups give permissions to resources. Distribution groups are only for email lists.
35. A user's account keeps getting locked. What do you do?
Unlock it, then find the source: an old password saved on a phone, mapped drive, Outlook or credential manager. The lockout event (4740) on the domain controller shows the calling computer.
36. What is Microsoft Entra ID?
The new name for Azure Active Directory: Microsoft's cloud identity service used by Microsoft 365, Teams and many cloud apps.
37. What is MFA and why is it important?
Multi-factor authentication asks for a second proof (app approval, code or security key) along with a password. It blocks most password-based attacks. Read our guide on passkeys for the strongest option.
38. What is Conditional Access?
A Microsoft Entra ID feature that allows or blocks sign-ins based on conditions such as user, device, location and risk. See 25 Conditional Access policies every admin should know.
39. Outlook is not opening. How do you troubleshoot?
Start Outlook in safe mode (outlook.exe /safe) to rule out add-ins, repair Office, create a new Outlook profile, check the OST file size and test Outlook on the web to confirm the mailbox itself is fine.
40. What is the difference between PST and OST?
PST is a personal archive file stored locally. OST is an offline cached copy of an Exchange or Microsoft 365 mailbox and can be rebuilt from the server.
41. A user cannot sign in to Teams. What do you check?
Check the user's licence, clear the Teams cache, check the date and time on the PC, check Conditional Access or MFA blocks in the sign-in logs and try Teams on the web. If the user sees error 53003, read how to fix Teams error code 53003.
Hardware and printer interview questions
42. What is the difference between RAM and ROM?
RAM is temporary working memory that is cleared when the PC turns off. ROM is permanent memory that stores firmware such as the BIOS.
43. What is the difference between BIOS and UEFI?
UEFI is the modern replacement for BIOS. It supports large GPT disks, faster boot, Secure Boot and a graphical interface. Windows 11 requires UEFI with Secure Boot capability and TPM 2.0.
44. What is TPM?
Trusted Platform Module is a security chip that stores encryption keys. It is used by BitLocker and Windows Hello and is required for Windows 11.
45. HDD vs SSD?
An SSD has no moving parts and is many times faster than an HDD. Upgrading an HDD to an SSD is one of the best fixes for a slow laptop.
46. A PC beeps and doesn't start. What does that mean?
Beep codes come from the motherboard during POST and usually point to RAM, graphics or CPU problems. Reseat the RAM first, then check the manufacturer's beep code list.
47. A printer is showing offline. How do you fix it?
Check power and network cable or Wi-Fi, print a configuration page to confirm the printer's IP, check the port in printer properties, restart the Print Spooler service and clear stuck jobs.
48. What is the Print Spooler?
The Windows service that queues print jobs. If printing is stuck, stop the spooler, clear C:\Windows\System32\spool\PRINTERS and start it again.
49. How do you add a network printer?
Settings > Bluetooth & devices > Printers & scanners > Add device, or add it by IP address / print server share (\\printserver\printername), and install the right driver.
Scenario-based desktop support interview questions
50. A CEO's laptop is not working before an important meeting. What will you do?
Treat it as top priority. Give a quick workaround first (a spare laptop or web access to email and files), then fix the original device. Keep the user informed and log the ticket afterwards.
51. A user clicked a suspicious link in an email. What do you do?
Disconnect the device from the network, report it to the security team, reset the user's password and revoke sessions, run a full scan and check the mailbox for forwarding rules. Don't blame the user, and do teach them what to look for. Security teams can find every recipient of the same email with the EmailEvents table in Defender XDR.
52. Ten users suddenly can't access a shared folder. Where do you start?
When many users are affected, suspect the server or network, not the PCs. Check if the file server is up, if the share and permissions changed and if there is a network or DNS issue. Raise it as a major incident if needed.
53. A user says "my computer is not working". How do you start?
Ask clear questions: what exactly happens, any error message, when it started, what changed, and whether others are affected. Then reproduce the problem before trying fixes.
54. You don't know the answer to a problem. What do you do?
Be honest, check the knowledge base and vendor documentation, ask a senior or escalate to L2 with good notes. Then document the fix so the next person solves it faster.
55. How do you set up a new joiner's laptop?
Image or Autopilot-enroll the laptop, join it to the domain or Entra ID, install standard software, set up Outlook, Teams and OneDrive, configure MFA, map printers and drives, and do a quick handover with the user.
56. How do you take a backup before reimaging a PC?
Confirm the user's data is in OneDrive or a network share, copy Desktop, Documents, Downloads and browser bookmarks, export any PST files, and note installed software and printers.
57. A laptop is lost. What steps do you take?
Report it, disable or reset the user's password and sessions, use Intune or the MDM tool to lock or wipe the device, confirm BitLocker was on and update the asset register.
58. Why should we hire you?
Connect your skills to their needs: strong Windows and Office 365 troubleshooting, good communication, calm under pressure, and a habit of documenting fixes. Give one short real example.
59. What are your strengths and weaknesses?
Pick a real strength with an example (patient with users, quick learner). For weakness, choose something real but improving (for example, "I'm learning PowerShell to automate repeat tasks").
60. Do you have any questions for us?
Always ask one or two: which ticketing tool they use, the team size, the shift timing, and the growth path from L1 to L2 or into system administration.
Desktop support engineer salary in India (2026)
Salary depends on experience, city, company type and whether the role is L1 or L2. Based on salary data reported on AmbitionBox and PayScale, these are typical yearly ranges:
| Experience | Typical salary (per year) |
|---|---|
| Fresher / around 1 year | ₹1.2 lakh to ₹3.2 lakh |
| 1 to 4 years | around ₹2.9 lakh average (₹1.5 to ₹4.8 lakh range) |
| 5+ years / L2 | ₹1.7 lakh to ₹5.4 lakh (top earners ₹6 lakh+) |
PayScale reports an average base salary of about ₹3 lakh per year, with most engineers earning between roughly ₹1.7 lakh and ₹5 lakh.
Salary by city (1 to 6 years' experience, AmbitionBox):
- Bangalore: ₹1.4 lakh to ₹4.4 lakh
- Mumbai: ₹1.4 lakh to ₹4 lakh
- Pune: ₹1.4 lakh to ₹3.8 lakh
- Delhi: ₹1.4 lakh to ₹3.7 lakh
- Chennai: ₹1.3 lakh to ₹3.6 lakh
Note: these figures are self-reported averages and change over time. Large MNCs and product companies usually pay above these ranges, especially for L2 roles with Microsoft 365, Intune or networking skills.
How to increase your salary faster: learn Microsoft 365 administration, Intune, Active Directory and basic PowerShell, and get a certification. These skills move you from L1 into L2, system admin or cloud support roles that pay noticeably more.
Desktop support engineer jobs in Bangalore, Pune and Chennai
All three cities have a large number of IT services companies, global capability centres (GCCs) and managed service providers that hire desktop support engineers throughout the year.
Desktop support engineer jobs in Bangalore
Bangalore has the highest number of openings, with demand from IT services firms, product companies and GCCs around Whitefield, Electronic City, Manyata Tech Park and Outer Ring Road. Many roles are on-site and need Microsoft 365, Intune and AD skills.
Desktop support engineer jobs in Pune
Pune has strong demand in Hinjewadi, Kharadi, Magarpatta and Baner, from IT services companies, automotive and manufacturing firms, and BFSI back offices. Shift-based support roles are common.
Desktop support engineer jobs in Chennai
Chennai hiring is concentrated around OMR, Guindy, Siruseri and Ambattur, from IT services firms, banks and healthcare companies. Knowing Tamil is a plus for on-site user support, but English communication matters most.
Where to search for jobs
- Naukri.com, LinkedIn Jobs, Indeed and foundit: search "desktop support engineer" plus your city.
- Company career pages of IT services and managed services companies.
- LinkedIn posts from recruiters: search "#hiring desktop support" and filter by recent posts.
- Walk-in drives: many service companies run walk-ins for L1 support.
Resume tips: list the exact tools you know (Windows 11, AD, Office 365, ServiceNow, Intune, SCCM), include ticket numbers or SLAs you handled, and mention certifications at the top.
Career path and certifications
A common growth path is: L1 desktop support → L2 desktop support → system administrator / Microsoft 365 administrator → cloud, Intune or security engineer.
Useful certifications:
- CompTIA A+: the classic entry-level certification for hardware and OS support.
- CCNA: networking basics that help in every support role.
- Microsoft 365 certifications (for example, Endpoint Administrator and Microsoft 365 Fundamentals): good for moving into M365 and Intune roles.
- ITIL 4 Foundation: shows you understand service management processes.
Setting up a home lab or a better desk? See our list of 12 trending IT gadgets for IT professionals.
FAQ
Is desktop support a good career?
Yes, as a starting point. It teaches you real troubleshooting, users and business systems. Growth is fastest if you keep learning Microsoft 365, cloud, networking or security and move to L2 or admin roles within two to three years.
Can a fresher get a desktop support engineer job?
Yes. Many companies hire freshers for L1 support. Basic Windows, networking and Office skills, good communication and a certification like CompTIA A+ improve your chances.
What qualification is needed for desktop support?
Usually a graduate degree or diploma (BCA, BSc IT, B.Tech, or a hardware and networking diploma). Practical skills and certifications often matter more than the degree.
What is the difference between desktop support and help desk?
Help desk is usually remote, first-contact support over phone, chat or tickets. Desktop support often includes hands-on, on-site work with hardware, laptops and printers. In many companies the roles overlap.
What is the salary of a desktop support engineer in Bangalore?
According to AmbitionBox data, around ₹1.4 lakh to ₹4.4 lakh per year for 1 to 6 years of experience, with higher pay at larger companies and for L2 roles.
Final tip: before your interview, practise answering troubleshooting questions out loud, step by step. Interviewers care less about the perfect answer and more about whether you think logically, stay calm and communicate clearly. All the best!
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