Network & Security
Business Email Going to Spam? Fix SPF, DKIM & DMARC — Delhi Office Guide (2026)
You sent an important proposal to a client. They never replied. Three days later they call to say they found your email in their…
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Author: Raju Manocha
Computer engineer and entrepreneur with 41+ years in the IT industry. Former Field Engineer at CMC Limited, a Government of India enterprise. Founded Classic Network and Computers (CNC) in April 1996 in West Patel Nagar, New Delhi. Author of Silicon, Security & the Future: The Complete IT Insider's Guide. Raju has personally overseen 1,50,000+ device servicing engagements and built long-term relationships with 100+ enterprise clients across Delhi NCR.
Software & Tally
Tally TSS Expired — What Happens to Your Software, What Data Is Safe, and How to Renew in Delhi
The Tally TSS expiry notification appears, someone dismisses it, and then a few weeks later something stops working — remote access goes down, payroll…
Data Recovery
Inside CNC’s Data Recovery Lab — How We Actually Recover Your Lost Files in Delhi
Most people bring in a dead hard drive with the same three questions: can the data be recovered, how long will it take, and…
AMC & IT Support
Server AMC in Delhi — Cost, Coverage & What You Should Expect from a Maintenance Contract (2026)
A server failure at 9 AM on a Monday is not a minor IT problem — it is a business stoppage. Orders cannot be…
Laptop & PC Repair
Before You Give Your Laptop for Repair — 10-Point Checklist Every Delhi Office and Home User Should Follow
Before You Give Your Laptop for Repair — 10-Point Checklist Every Delhi Office and Home User Should Follow Most people hand over a laptop…
AMC & IT Support
HP Care Pack vs Dell & Lenovo Warranty Extension: Delhi Guide 2026
Every office in Delhi has the same laptop story. The machine works fine for 13 months, then the screen cracks on the metro or…
Hardware & Refurb
Buying MacBooks for Your Company: GST Invoice, Bulk Pricing, and Depreciation Guide (India)
Searching "buy MacBook Delhi" gets you consumer stores, EMI offers and exchange bonuses — none of which answer the questions a company actually has:…
AMC & IT Support
Laptop AMC Services in Delhi for Offices: What It Covers and What It Costs
Most AMC pages talk about desktops. Laptops are different: they travel, they get dropped, their batteries age, and the person using one is usually…
AMC & IT Support
IT AMC Contract Checklist: 12 Clauses to Check Before You Sign
Most computer AMC disputes in Delhi are not about the price. They are about what the price was supposed to include. This checklist lists…
Hardware & Refurb
Multi-Monitor Trading Setup Guide: 4, 6, and 8-Screen Configurations with India Pricing
Traders are the one group who search "multi-monitor setup" with a budget already approved. They also get burned most often — by a PC…