While primarily a shutdown tweak, reducing the time Windows waits for hung services to close can prevent "stuck" reboots and speed up the transition back into a fresh bootstrap. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control
Optimizing the Windows 7 "bootstrap"—the sequence from power-on to a functional desktop—involves reducing artificial delays and streamlining service initialization. While modern hardware has largely mitigated these issues, registry tweaks remain a powerful method for squeezing maximum performance out of legacy systems. 1. Eliminating the Startup App Delay
Locate EnablePrefetcher . Change its value to 2 (Boot only). The default is typically 3 (Boot and Application). 3. Forcing Boot File Defragmentation
Set the OptimizeComplete string value to Yes . This signals the system to perform a layout optimization of boot files during the next idle period. 4. Accelerating Service and App Termination
Create a new key named Serialize . Inside it, create a DWORD (32-bit) value named StartupDelayInMSec and set its data to 0 . 2. Enabling Boot-Only Prefetching