BlueScreenAlert

Monitors Windows paging file usage and warns before a system crash (BSOD) caused by virtual memory exhaustion.
If the configured limit is exceeded, it alerts the user and force-closes Chrome, Edge, and Firefox to free memory.
On first run, it will also add itself to Windows Startup so it launches automatically.

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Requirements

• Windows 10 or newer
• PowerShell 3.0 or newer
• config.ini in the same folder as the executable.

Example config.ini:

[Settings]
limit=85
seconds=60
added_to_startup=false

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Reference

• PS2EXE GitHub Repository

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Build Instructions

Install PS2EXE:

Install-Module -Name ps2exe -Scope CurrentUser

Compile the script to an EXE:

ps2exe blueScreenAlert.ps1 blueScreenAlert.exe -noConsole

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Usage

1. Place blueScreenAlert.exe and config.ini in the same folder.
2. Run blueScreenAlert.exe for the first time — it will automatically add itself to Windows Startup.
3. On each run, it will:
   • Check paging file usage every seconds interval.
   • If usage exceeds limit (%), show a warning and close browsers.

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Troubleshooting

Execution policy errors when compiling
If PowerShell blocks running scripts:

Set-ExecutionPolicy RemoteSigned -Scope CurrentUser

Blocked file warning on download
Right-click the .ps1 file → Properties → check “Unblock” → Apply.

EXE not starting on boot
Check the shortcut in:

%APPDATA%\Microsoft\Windows\Start Menu\Programs\Startup

It should point to blueScreenAlert.exe.

Multiple instances
The EXE uses a mutex to ensure only one instance runs at a time.

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Notes

• This tool is intended for personal use and testing.
• Force-killing browsers will close all open tabs without saving unsaved data.
• Use with caution on production systems.

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What’s new

• Read-only config: reads config.ini next to the EXE/PS1; never overwrites it.
• Autostart via Task Scheduler (Defender-friendly): enabled when added_to_startup=true in config.
• Event Log: logs config path, loaded values, task install status, and high-memory events.

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Requirements

• Windows 10+
• PowerShell 5+ (built-in on Win10)
• config.ini in the same folder as the executable/script

Example config.ini:

[Settings]
limit=85
seconds=15
kill=chrome;msedge;firefox
added_to_startup=true