When you download and run the Visual Studio 2012 Update 5 installer, Preparation.exe is executed as part of the installation process. Here's what it does:
If the process is looping due to certificate validation failures, disconnecting your network adapter can force the installer to bypass online verification. Disconnect your Wi-Fi or unplug your Ethernet cable. visual studio 2012 update 5 preparationexe top
Choose Visual Studio 2012 from the list to let the tool repair broken registry hooks automatically. Best Practices for Deploying Legacy Visual Studio Updates When you download and run the Visual Studio
| Aspect | Details | |--------|---------| | | preparation.exe | | Purpose | Pre-install checks & environment setup for VS2012 Update 5 | | High CPU | Normal for first 10 min; abnormal if >30 min | | Common Fixes | Run as admin, disable AV, clean temp, use ISO | | Ultimate Fix | Repair VS2012 base, then run Update 5 from ISO with /quiet | Choose Visual Studio 2012 from the list to