Adhen Prasetiyo

Adhen Prasetiyo

Verified

Research Bug bounty at javahack team · 25+ years experience

Research Bug bounty Profesional

Web Development Research Bug Hunter
CCT CEH SSCP CISSP CISM FCX

About Adhen Prasetiyo

Research Bug bounty in Hackerone, bugcrowd, intigriti

Articles by Adhen Prasetiyo (64)

App Fixes | Adhen Prasetiyo

How to Fix Microsoft Outlook Not Syncing or Receiving Emails — The OST File Nobody Checks

Outlook says "Connected" but no new emails arrive. Or it's stuck on "Trying to connect" for hours. You've restarted it three times. The problem is almost never the email server — it's usually a corrupted local data file, a stuck sync process, or an authentication token that expired without telling you.

How-To Guides | Adhen Prasetiyo

How to Fix an External Hard Drive Not Showing Up on Windows 11 — Check Disk Management Before You Panic

You plugged in your external hard drive and it didn't appear in File Explorer. Before you assume the drive is dead and your data is lost, open Disk Management — because Windows probably sees the drive just fine. It's just not showing it to you because of a missing drive letter, an uninitialized disk, or a file system

Windows Fixes | Adhen Prasetiyo

How to Fix Blue Screen of Death (BSOD) on Windows 11 — Read the Stop Code Before You Panic

Your screen just went blue (or black in newer Windows 11 builds) and showed a frowning face with a cryptic error code. Most people panic and start Googling random fixes. But that stop code on screen is literally telling you what went wrong — if you know how to read it. Here's how to decode BSOD errors, find the exact

Linux Fixes | Adhen Prasetiyo

How to Fix Cron Jobs Not Running on Linux — The Environment Variable Trap That Gets Everyone

Your cron job works perfectly when you run it manually in the terminal, but it silently does nothing when cron executes it. No error, no output, no evidence it even tried. The problem is almost always the same thing — cron runs in a stripped-down environment with a minimal PATH, no loaded profile, and no idea where you

How-To Guides | Adhen Prasetiyo

How to Fix a Printer That Won't Print on Windows 11 — The Print Spooler Reset That Works When Nothing Else Does

You click Print and absolutely nothing happens. No error message, no paper, nothing. The printer just sits there ignoring you. The most common cause isn't the printer itself — it's the Windows Print Spooler service that silently crashed, a stuck job poisoning the print queue, or a driver that Windows 11

Windows Fixes | Adhen Prasetiyo

How to Fix Windows 11 Slow Startup — Why Disabling Startup Apps Barely Helps and What Actually Does

You've disabled every startup app you can find, and Windows 11 still takes two minutes to boot. That's because startup apps are only one piece of the puzzle — and usually the smallest one. The real delays come from places Task Manager doesn't show you: background services, Fast Startup corruption, BIOS configuration

Mobile Fixes | Adhen Prasetiyo

How to Fix iPhone WiFi Keeps Disconnecting — The Private Address Setting Nobody Checks

Your iPhone keeps dropping WiFi every few minutes while every other device stays connected. You've restarted the router and the phone, forgotten the network and reconnected, and it still drops. The cause is probably an iOS privacy feature called Private WiFi Address that confuses certain routers — and nobody's telling

Browser Fixes | Adhen Prasetiyo

How to Fix Google Chrome Running Slow and Using Too Much RAM — The Tab Problem Nobody Talks About

Chrome is slow. Chrome eats all your RAM. You've heard this a thousand times. But the reason most fixes don't work is because they target the wrong thing. The real memory killers aren't your 20 open tabs — it's what's running INSIDE those tabs. Here's how to find and stop the actual resource hogs.

Mobile Fixes | Adhen Prasetiyo

How to Fix iPhone Storage Full — Free Up Space and Update iOS When Nothing Seems to Work

Your iPhone says storage is full. You've deleted apps, photos, and videos, but the storage bar barely moves. That's because the biggest space hog isn't your files — it's "System Data" that iOS accumulates behind the scenes. Here's how to clear it, free up real space, and update iOS even when your phone says there's no

App Fixes | Adhen Prasetiyo

How to Resolve Git Merge Conflicts — The Guide That Actually Explains What's Happening

Git says "CONFLICT" and drops a bunch of weird symbols into your code. Most people panic, pick "Accept Current" or "Accept Incoming" randomly, and hope for the best. That's how bugs get introduced. Here's what those conflict markers actually mean, how to read them, and how to resolve conflicts correctly

Linux Fixes | Adhen Prasetiyo

How to Fix Docker Container That Won't Start or Keeps Exiting — Read the Exit Code First

Your Docker container starts and immediately exits, or it won't start at all. Before you search for random solutions, check the exit code — it tells you exactly what went wrong. Exit 0 means the container finished normally. Exit 1 means the app inside crashed. Exit 137 means Linux killed it because it ran out of memory

Browser Fixes | Adhen Prasetiyo

How to Fix "Your Connection Is Not Private" Error on Chrome and Edge — When to Fix It and When to Walk Away

Chrome shows a red warning page saying "Your connection is not private" with error codes like NET::ERR_CERT_DATE_INVALID or ERR_CERT_AUTHORITY_INVALID. Sometimes this means the website has a real security problem you should avoid. Other times your own computer is causing the error on perfectly safe websites. Here's how

App Fixes | Adhen Prasetiyo

How to Fix Zoom Audio Not Working — Microphone, Speaker, or Both

You join a Zoom meeting and either you can't hear anyone, they can't hear you, or both. Before you blame your headset, the problem is almost always a software setting — Windows privacy permissions silently blocking Zoom, wrong audio device selected, or Zoom's own automatic adjustments fighting your system.