The Optimize Windows feature includes the following settings you can configure:

  • Allow Hybrid Sleep
  • Allow Hibernation
  • Send Errors to Microsoft
  • Enable Prefetch
  • Enable Desktop Search
  • Clear Page File on Reboot

If an option is disabled, it is due to the fact that your operating system does not support it.

You can enable any setting by placing a check mark next to it, or disable it by removing the check.


Allow Hybrid Sleep

Hybrid sleep is a feature offered with Windows Vista and Windows 7 and is designed for desktop computers. Hybrid sleep combines both sleep and hibernation modes. Documents and programs are placed on your hard drive and then your computer enters a low-power Standby state. This is beneficial as you can quickly resume operations when in Standby mode and are less likely to lose data in a power failure. When hybrid sleep is enabled, your computer will automatically use it when it enters sleep mode.

Allow Hibernation

Hibernation is a feature common to recent Windows operating systems. It is a power-saving state designed primarily for laptops to reduce drawing too much power from the battery. Hibernation puts your open documents and programs on your hard disk, and then turns off your computer. Hibernation uses the lowest possible amount of power.

Send Errors to Microsoft

Microsoft has an error reporting system whereby a notification is displayed immediately after an error is encountered. While disabling this will not make your system run faster, some users find error reporting a nuisance.

Enable Prefetch

The Prefetcher feature in Windows operating systems speeds up the Windows boot process and shortens the amount of time it takes to start programs. It allows the operating system to learn which programs you use the most and prioritize those. Disabling the Prefetch can have a negative impact.

Enable Desktop Search

This function is designed to search the content of your computer similar to a search done on the Internet. Searches can include such items as text documents, multimedia files (audio, images, video), web browser histories, e-mail archives, and more. Search engines such as this require the system to build and maintain index databases, so disabling this feature will free up some system resources.

Clear Page File on Reboot

The page file contains virtual memory used to store instructions or data. It is a hidden file on your computer's hard disk that operating systems take advantage of in a way similar to RAM (Random Access Memory). This process of storing information to the Page File can result in a performance hit. However, with most new computer systems this would not be detectable. Enabling this option results will clear the page file during shut down, which can occasionally lead to longer shut down times. The page file can contain sensitive information including passwords, so many security experts recommend clearing the page file to minimize the security threat.