# បើក Run Dialog (Win+R) ហើយវាយ:
mdsched.exe

# ឬប្រើ Command Prompt ជា Administrator:
MdSched.exe

# ជ្រើស "Restart now and check for problems"
# Windows នឹង Test RAM ពេល Restart

# ពិនិត្យ Drive C: (ត្រូវ Admin)
chkdsk C: /f /r /x

# /f = Fix Errors  /r = Recover Data  /x = Dismount First
# ប្រសិនបើ C: Drive: Windows នឹង Schedule ពេល Reboot

# ពិនិត្យ SSD Health
wmic diskdrive get status
Status=OK  # ↑ ល្អ

# ពិនិត្យ Temperature តាម CMD
wmic /namespace:\\root\wmi PATH MSAcpi_ThermalZoneTemperature get CurrentTemperature

# ⚠️ លទ្ធផល: 3000 = (3000/10) - 273.15 = 26.85°C
CurrentTemperature
3000

# ប្រើ HWiNFO64 ឬ HWMonitor ងាយជាង

══ SFC — System File Checker ══
sfc /scannow
# Windows Resource Protection found corrupt files and repaired them.

══ DISM — Repair Windows Image ══
DISM /Online /Cleanup-Image /RestoreHealth
# The restore operation completed successfully.

══ ប្រសិន SFC បរាជ័យ: ដំណើរការ DISM មុន SFC ══
DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannow

bootrec /fixmbr       # Repair Master Boot Record
bootrec /fixboot      # Write new Boot Sector
bootrec /scanos       # Scan for Windows Installations
bootrec /rebuildbcd   # Rebuild Boot Configuration Data

# ប្រសិន UEFI: ប្រើ bcdboot ដែរ
bcdboot C:\Windows /s C: /f UEFI

# បើក Device Manager
devmgmt.msc

# ពិនិត្យ Problem Drivers (Yellow Exclamation = Issue)

# List Driver ទាំងអស់ (PowerShell)
Get-WindowsDriver -Online -All | Select Driver,ClassDescription,Version

# Rollback Driver Problem
pnputil /enum-drivers
pnputil /delete-driver oem5.inf /force

# Full Scan ជាមួយ Windows Defender
Start-MpScan -ScanType FullScan

# Update Virus Definitions
Update-MpSignature

# ពិនិត្យ Threats ដែល Detected
Get-MpThreatDetection

# Remove Threats ទាំងអស់
Remove-MpThreat

══ Method 1: BIOS Menu ══
Boot ចូល BIOS (Del/F2/F10) → Load Setup Defaults → Save & Exit

══ Method 2: CMOS Jumper ══
Motherboard → ស្វែងរក CLR_CMOS Jumper → Short 2-3 pins 10 វិនាទី → ត្រលប់ 1-2

══ Method 3: Remove CMOS Battery ══
ដោះ CR2032 Battery 30 វិនាទី → ដំឡើងវិញ → BIOS Reset

⚠️ BIOS Update: ប្រើ ជា Last Resort ប៉ុណ្ណោះ — ខុសជំហានអាច Brick Motherboard

# ពិនិត្យ BSOD Event ក្នុង Event Log
Get-EventLog -LogName System -EntryType Error | Where-Object {$_.EventID -eq 41}

# Minidump Location
C:\Windows\Minidump\

# ប្រើ WinDbg (Windows Debugger) ពី Microsoft Store
# ឬ WhoCrashed — ងាយ & Free ជាង

# ពិនិត្យ Dump ចុងក្រោយ
dir C:\Windows\Minidump\ /od

# ១. Run TestDisk (Admin)
testdisk_win.exe

# ២. Select Drive → Proceed
[ ] Disk /dev/sda - 500 GB / 465 GiB

# ៣. Select Partition Table: Intel (MBR) ឬ EFI GPT
# ៤. Analyse → Quick Search
# ៥. ជ្រើស Lost Partition → Write
Write partition structure: OK

# ៦. Reboot → Partition Recovered!

══ ពិនិត្យ IP Configuration ══
ipconfig /all
# ដែលសំខាន់: IPv4 Address, Default Gateway, DNS Servers

══ Ping Test ══
ping 8.8.8.8           # Test Internet (Google DNS)
ping google.com         # Test DNS Resolution
ping 192.168.1.1        # Test Gateway/Router

══ Trace Route ══
tracert google.com      # ស្វែងរក Where Packet Drop

══ Reset Network Stack ══
netsh winsock reset
netsh int ip reset
ipconfig /flushdns
ipconfig /release
ipconfig /renew

# ១. Disable Startup Programs
Get-CimInstance Win32_StartupCommand | Select Name, Command

# ២. Set Power Plan to High Performance
powercfg /setactive 8c5e7fda-e8bf-4a96-9a85-a6e23a8c635c

# ៣. Optimize Drive (SSD = Trim, HDD = Defrag)
Optimize-Volume -DriveLetter C -ReTrim -Verbose

# ៤. Clear Temp Files
Remove-Item -Path "$env:TEMP\*" -Recurse -Force -ErrorAction SilentlyContinue
Remove-Item -Path "C:\Windows\Temp\*" -Recurse -Force -ErrorAction SilentlyContinue

# ៥. Clear DNS Cache
ipconfig /flushdns
Successfully flushed the DNS Resolver Cache.

════ SYSTEM HEALTH ════
sfc /scannow                              # System File Check
DISM /Online /Cleanup-Image /RestoreHealth # Repair Windows Image
chkdsk C: /f /r /x                        # Check & Fix Disk

════ NETWORK ════
ipconfig /all                              # IP Info
netstat -ano                               # Active Connections + PIDs
netsh winsock reset                        # Reset Network Stack
arp -a                                     # ARP Table (Local Network)
nslookup google.com                        # DNS Lookup

════ HARDWARE INFO ════
msinfo32                                   # System Information GUI
dxdiag                                     # DirectX Diagnostic
wmic cpu get name,NumberOfCores            # CPU Info
wmic memorychip get capacity,speed         # RAM Info
wmic diskdrive get model,size,status       # Disk Info

════ PROCESS & SERVICE ════
tasklist                                   # Running Processes
taskkill /PID 1234 /F                      # Kill Process by PID
sc query                                   # List Services
sc stop servicename                        # Stop a Service

════ BOOT & RECOVERY ════
bcdedit /enum                              # Boot Config
bootrec /rebuildbcd                        # Rebuild Boot Data
reagentc /enable                           # Enable WinRE

════ POWERSHELL ADVANCED ════
Get-Process | Sort-Object CPU -Desc | Select -First 10  # Top CPU Users
Get-EventLog -LogName System -Newest 20 -EntryType Error # Recent Errors
Test-Connection google.com -Count 4        # PowerShell Ping