![]() ![]() Otherwise, other device initializations cannot occur in parallel. For more information, see Fast Startup from a Low-Power State.Ī device driver should not hold a spin lock for more than a brief time, especially during a cold startup from a power-off state. If your driver promptly completes the S0 set-power IRP, the operating system can finish startup while your driver reinitializes the device as a background task. For more information, see Sharing Processor Resources During Startup from a Low-Power State.ĭuring a warm startup from standby or hibernation, a functional device driver should complete an S0 set-power IRP immediately, and then request a D0 set-power IRP. Otherwise, the driver thread might be starved for processor time by unrelated threads, and startup will be delayed.ĭuring a warm startup from standby or hibernation, a driver's DPC routine, or initialization code that runs at DISPATCH_LEVEL, should avoid long execution times that block other drivers from running. Here are two ways to do this: Run msconfig.exe, select the Startup tab, and clear the checkboxes beside those programs you no longer want to start automatically on startup. When a computer starts up from the standby or hibernation state (warm startup), a driver that must be initialized before startup completes should use high-priority worker threads and critical queue work items to offload any small tasks that it requires. When you have a slow boot, check that no external drives have. in a Run window (Windows Logo key R), type cmd and press Enter to open a command prompt then type defrag C:\ -b (note the two spaces) and press Enter. See if the Turn on fast startup (recommended) box is checked. You’ll get a slightly faster start up if you optimise the boot files and applications by running a special defragmentation, i.e. Click Choose what the power buttons do on the left-side menu. Limit your driver's initialization code to the operations that are required to make the device ready to use. Click Power
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