If the error is gone, re-enable services and startup items in batches until you find the culprit. Common offenders: Adobe Genuine Software Integrity Service, Logitech Options, Wacom Tablet Service, and VMWare Tools.
Install the runtimes in this sequence: 2005 (x86 first, then x64 if on 64-bit Windows), then 2008, then 2010. Reboot after each installation if prompted. error cannot initialize library solidworks 2012
Antivirus software often quarantines or blocks SolidWorks DLLs during loading. Disable real-time protection completely (disconnect from the internet first), then launch SolidWorks. If it works, add exclusions for: If the error is gone, re-enable services and
Sometimes the installer fails to register COM libraries. Use regsvr32 to force registration. If the error is gone
SolidWorks 2012 attempts to write to its installation folder and registry during initialization. If it lacks permissions, library initialization fails.