Black Screen on Startup — 8 Ways to Fix No Display (Windows 11)

PC on hota hai par screen black? 8 detailed fixes — monitor cable, RAM reseat, GPU reset, CMOS, startup repair — 10 FAQs included.

  PC Troubleshooting   Oct 19, 2026   0   13  Add to Reading List
Black Screen on Startup — 8 Ways to Fix No Display (Windows 11)

Black Screen on Startup — 8 Ways to Fix No Display (Windows 11)

PC power button dabaya — fan chala, lights on, par screen bilkul black? Na logo, na cursor — sirf kali screen? Ye boot se pehle ka display issue hai — hardware ya driver. 8 detailed fixes order se karo — pehle 4 se 80% cases solve hote hain.

Table of Contents

  1. Dono Types Samjho (Diagnosis)
  2. Fix 1 — Monitor + Cable Check
  3. Fix 2 — Win+Ctrl+Shift+B (GPU Reset)
  4. Fix 3 — RAM Reseat (Sabse Common)
  5. Fix 4 — Display Output Change
  6. Fix 5 — CMOS/BIOS Reset
  7. Fix 6 — Startup Repair
  8. Fix 7 — Single RAM Stick Test
  9. Fix 8 — Hardware Isolate
  10. FAQ — 10 Questions
  11. Conclusion

Dono Types Samjho (Diagnosis)

SignMatlabFix
BIOS logo bhi nahiHardware (RAM/cable/GPU)Fix 1,3,4,8
Logo dikhta, phir blackWindows driverFix 2,6
Beeps sunte hoBeep code = exact partTable neeche

Beep codes: 1 long 2-3 short = GPU | Continuous = RAM | No beep = PSU/board

Fix 1 — Monitor + Cable Check

  1. Monitor ka power light on hai? Nahi = monitor ya cable
  2. HDMI/DP dono ends tight karo — GPU end pe bhi
  3. Doosra cable try — cables dead hote hain
  4. Monitor button → Input/Source → sahi select (HDMI1/2/DP)
  5. Monitor doosre laptop/phone pe test — monitor OK confirm

Fix 2 — Win+Ctrl+Shift+B (GPU Reset)

Screen black par PC chal raha (sound, caps lock light)?

  1. Win + Ctrl + Shift + B ek saath dabao
  2. Ek beep sunai dega — graphics driver restart
  3. Screen blink hoke wapas aa jayega — 30% cases instant fix

Fix 3 — RAM Reseat (Sabse Common Fix)

Boot se pehle black screen ka #1 cause (60%):

  1. PC off → power cable nikalo → power button 10 sec hold (discharge)
  2. Side panel kholo → RAM sticks nikalo
  3. Eraser se golden contacts saaf karo (oxidation hatata hai)
  4. Wapas firmly insert — dono sides pe click sunna chahiye
  5. Boot karo — 60% cases yahi solve

Fix 4 — Display Output Change

  1. Dedicated GPU hai? → cable motherboard port pe lagao (iGPU)
  2. Display aaye? → GPU dead hai — iGPU se kaam chalao
  3. Doosra monitor ya TV HDMI pe test — PC vs monitor isolate

Fix 5 — CMOS/BIOS Reset

BIOS settings corrupt ho toh boot nahi hota:

  1. Motherboard pe coin battery CR2032 → 30 sec nikalo → wapas
  2. Ya CLR_CMOS jumper 2 pins short karo 5 sec
  3. Defaults load — stuck settings reset

Fix 6 — Startup Repair

Logo dikhta par Windows nahi aata:

  1. Boot pe power hold → off — 3 baar repeat
  2. Automatic Repair screen aayegi
  3. Troubleshoot → Advanced Options → Startup Repair
  4. 10-30 min — Windows boot files fix

Fix 7 — Single RAM Stick Test

Multiple sticks?

  1. Sirf stick 1 slot A1 mein → boot
  2. Nahi chala? → stick 2 A1 mein → boot
  3. Dead stick identify — replace

Fix 8 — Hardware Isolate

  • PSU test: paperclip trick (24-pin green+black short) — fan chale = alive
  • GPU remove → iGPU pe test
  • Debug LED motherboard pe — DRAM/VGA/CPU lit = wahi culprit

FAQ

Q1. BIOS logo bhi nahi dikhta — kya karein?

Hardware issue — RAM reseat (Fix 3) pehle, phir display cable + iGPU test.

Q2. Logo dikhta phir black ho jata?

Windows driver issue — Safe Mode ya Startup Repair (Fix 6).

Q3. Beeps sunai de rahe — matlab?

Beep code = exact part. 1 long 2-3 short = GPU, continuous = RAM, no beep = PSU.

Q4. New PC build pe black screen?

8-pin CPU power cable plug karna bhool gaye ho — #1 common mistake.

Q5. Kabhi chalta kabhi nahi?

Loose RAM/cable ya failing PSU — reseat + single stick test.

Q6. Laptop pe ye same steps?

RAM reseat accessible models mein — warna external monitor test + service center.

Q7. CMOS reset se data jayega?

Nahi — sirf BIOS settings reset, files/drive safe.

Q8. Fan chalta, keyboard lights on, no display?

RAM ya GPU — Fix 3 + Fix 4.

Q9. HDMI try kiya, DP se karo?

Haan — port dead ho sakta hai, doosra output try karo.

Q10. Sab try kiya, ab kya?

Breadboard test ya service center — motherboard/CPU fail possible.

Conclusion

Black screen on startup = pehle monitor cable + input check, phir RAM reseat (60% fix), phir iGPU display test. Logo dikhta hai toh driver — Win+Ctrl+Shift+B ya Startup Repair. Hardware isolate karna hi asli diagnosis hai.

TAGS: black screen on startup, no display on boot, pc on but screen black, windows 11 black screen, monitor no signal, ram reseat fix, gpu no display, pc wont boot display, techn trainer

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