| CRITICAL_PROCESS_DIED |
Blue Screen: CRITICAL_PROCESS_DIED (Stop code 0x000000EF) |
A process Windows can’t run without (csrss, wininit, smss…) stopped unexpectedly, so the system halted. |
| IRQL_NOT_LESS_OR_EQUAL |
Blue Screen: IRQL_NOT_LESS_OR_EQUAL (Stop code 0x0000000A) |
A driver accessed memory at an interrupt level where that’s not allowed — almost always a faulty or incompati… |
| MEMORY_MANAGEMENT |
Blue Screen: MEMORY_MANAGEMENT (Stop code 0x0000001A) |
Windows detected a severe memory-management error — commonly faulty RAM, unstable memory settings or a bad dr… |
| 0xC000007B |
The application was unable to start correctly (0xc000007b) |
A program loaded a DLL of the wrong architecture (32-bit vs 64-bit) or a corrupted runtime library. |
| VCRUNTIME140.dll |
VCRUNTIME140.dll was not found / MSVCP140.dll is missing |
The program needs the Microsoft Visual C++ 2015–2022 Redistributable, which isn’t installed (or is damaged). |
| 0x80004005 |
Windows Error 0x80004005 (E_FAIL): Unspecified error |
A generic failure code — the operation failed for a reason the component didn’t report precisely. Context dec… |
| 0x80070002 |
Windows Error 0x80070002: The system cannot find the file specified |
A file or registry entry Windows expected is missing — common in Windows Update, backups and app installs. |
| 0x80070005 |
Windows Error 0x80070005 (E_ACCESSDENIED): Access is denied |
Windows refused an operation because the account or process lacks permission — seen in Windows Update, instal… |
| 0x80070643 |
Windows Error 0x80070643: Fatal error during installation |
An MSI-based installer or update (often Defender definitions, .NET or the WinRE update KB5034441) failed duri… |
| 0x800F081F |
Windows Error 0x800F081F: The source files could not be found |
DISM or “Turn Windows features on or off” (often .NET Framework 3.5) couldn’t find the files needed to instal… |