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How to Install Windows, macOS, and Linux Step by Step Complete OS Installation Guide 2025

Techburst.in October 06, 2025

 How to Install Windows, macOS, and Linux Step by Step – Complete 2025 Guide


Computer ke bina aaj ki duniya imagine karna mushkil hai. Lekin jab ek naya PC ya laptop lete hain, ya purane system ko reset karna padta hai, sabse important kaam hota hai – Operating System (OS) install karna.
Teen sabse popular OS hain:

  • Windows (Microsoft ka)

  • macOS (Apple ka)

  • Linux (Open-source aur free)

Is article mai hum step by step dekhenge ki kaise aap Windows, macOS, aur Linux ko apne computer par install kar sakte ho safely. Ye guide beginners ke liye simple language mai likhi gayi hai taki aapko lagai ki ek expert manually samjha raha hai.

🔹 1. What is an Operating System?

Operating System (OS) ek software hota hai jo aapke computer hardware aur software ko manage karta hai. Bina OS ke computer ek dead machine jaisa hai.

  • Windows: User-friendly aur gaming ke liye best.

  • macOS: Apple devices ke liye smooth aur secure.

  • Linux: Free, customizable aur developers ke liye best.

🔹 2. Installation ke Liye Zaruri Cheezein

Kisi bhi OS ko install karne se pehle aapko kuch cheezein ready karni hongi:

  1. Bootable USB Drive (at least 8GB storage)

  2. ISO File (Windows/macOS/Linux ka installation file)

  3. Backup (Apna data safe rakhne ke liye)

  4. Stable Power Supply (Laptop mai charging aur PC mai UPS preferable)

🔹 3. How to Install Windows (10/11) Step by Step

Step 1: Download Windows ISO

  • Microsoft ki official website se Windows 10 ya 11 ISO download karo.

Step 2: Create Bootable USB

  • Use “Rufus” software (Windows ke liye).

  • USB select karo → Windows ISO choose karo → Start.

Step 3: Boot from USB

  • PC restart karo.

  • Boot menu kholne ke liye keys press karo (F12, F2, ESC, ya Delete).

  • USB ko boot device select karo.

Step 4: Windows Setup

  • Language select karo.

  • “Install Now” par click karo.

  • Product key dalen ya “I don’t have a key” choose karein.

Step 5: Partition Select

  • Jis drive mai OS install karna hai usse select karo (usually C:).

  • Old partitions delete karke “New” option se naya banayein.

Step 6: Installation Process

  • Ab Windows files copy karega aur restart hoga.

  • Setup complete hone par aapko region, username, password set karna hoga.

👉 Congratulations! Ab aapka Windows ready hai.

🔹 4. How to Install macOS Step by Step

⚠️ Note: macOS sirf Apple devices (MacBook, iMac, Mac Mini) par officially install hota hai.

Step 1: Create macOS Bootable USB

  • Mac App Store se macOS ka latest version download karo.

  • “Disk Utility” open karo aur USB ko format karo (Mac OS Extended, GUID Partition).

  • Terminal mai command use karo:

    sudo createinstallmedia --volume /Volumes/MyUSB --applicationpath /Applications/Install\ macOS\ [Version].app

Step 2: Boot into USB

  • Mac restart karo aur Option (⌥) button press karke rakho.

  • USB installer select karo.

Step 3: Erase Disk

  • Disk Utility open karo.

  • Macintosh HD select karke “Erase” karo (APFS ya Mac OS Extended format choose karein).

Step 4: Install macOS

  • Installer par “Install macOS” choose karo.

  • Install hone ke baad Mac restart hoga aur setup wizard open hoga.

👉 Ab aapka Mac fresh aur ready hai use ke liye.

🔹 5. How to Install Linux (Ubuntu Example) Step by Step

Linux ke kai distributions (distros) hote hain jaise Ubuntu, Fedora, Mint, Debian. Yahan hum Ubuntu install karna seekhenge (sabse beginner-friendly).

Step 1: Download Ubuntu ISO

  • Ubuntu ki official site se ISO download karo.

Step 2: Create Bootable USB

  • Rufus ya balenaEtcher use karke Ubuntu ka bootable USB banao.

Step 3: Boot from USB

  • PC restart karo aur boot menu kholkar USB select karo.

Step 4: Try or Install Ubuntu

  • Aap “Try Ubuntu” option se live test kar sakte ho.

  • “Install Ubuntu” select karo installation ke liye.

Step 5: Partition Setup

  • “Erase disk and install Ubuntu” → Beginners ke liye best.

  • Advanced users “Something else” select karke partitions manually bana sakte hain.

Step 6: Installation

  • Time zone, username aur password set karo.

  • Installation ke baad PC restart hoga aur aap Linux enjoy kar sakte ho.

👉 Linux lightweight aur secure OS hai, developers aur programmers ke liye best.

🔹 6. Dual Boot Installation (Windows + Linux)

Kai log ek hi system par do OS chahte hain. Ye process dual boot kehlaata hai.

  1. Pehle Windows install karo (kyunki uska bootloader overwrite karta hai).

  2. Fir Linux install karo aur partition alag bana do.

  3. Boot hone par aapko option milega – Windows ya Linux choose karne ka.

🔹 7. Common Problems During Installation

  1. Bootable USB Detect Nahi Ho Raha → BIOS mai Legacy/UEFI mode check karo.

  2. Product Key Error (Windows) → “I don’t have a key” option select karo aur baad mai activate karo.

  3. macOS Installation Fail → USB properly formatted hai ya nahi check karo.

  4. Linux Grub Error → Boot Repair tool se fix karo.

🔹 8. Safety Tips for OS Installation

  • Hamesha original ISO files use karo (pirated nahi).

  • Data backup karna na bhulein.

  • Installation ke baad drivers update karein.

  • Security ke liye antivirus install karein (Windows users ke liye).

✅ Conclusion

Operating System install karna ek technical process lagta hai, lekin agar aap step by step guide follow karte ho to ye kaafi easy ho jata hai.

  • Windows → User-friendly aur gaming ke liye perfect.

  • macOS → Apple hardware ke liye smooth aur secure.

  • Linux → Free, customizable aur developers ke liye ideal.

Aap apne need ke hisaab se koi bhi OS install kar sakte ho apnai window mai koi bhi operating system use kar saktai ho apnai use kai hisab sai.

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