Disabling A handful of services in your system will free up resources, remove extra running processes, and alleviate excess CPU usage.
Now there is way to much information to post here so I'll present two options for you. Either with Game Booster which is a quick fix that you have to turn on and off manually with a desktop icon or Thoroughly selecting which services you wish to disable with full explanations of each and ready-to-download presets from Black Viper
Alternately I have generated a Windows 7 64bit "TWEAKED" Services registry file that uses Black Vipers tweaked service configuration so I don't have to select each service one by one and do it manually. You can preview all the code below or Download The Registry File instead.
Windows Registry Editor Version 5.00;TWEAKED section of blackvipers windows 7 service configurations, created with his Custom Services Registry File Creation Tool[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AxInstSV]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SensrSvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AeLookupSvc]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AppIDSvc]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Appinfo]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ALG]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AppMgmt]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BITS]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BFE]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\BDESVC]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wbengine]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\bthserv]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PeerDistSvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CertPropSvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\KeyIso]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\EventSystem]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\COMSysApp]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Browser]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VaultSvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CryptSvc]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UxSms]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dhcp]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\defragsvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSDTC]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dnscache]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\EFS]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\EapHost]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\fdPHost]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\FDResPub]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\hkmsvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\HomeGroupListener]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\HomeGroupProvider]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\hidserv]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\IKEEXT]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UI0Detect]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SharedAccess]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\iphlpsvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PolicyAgent]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\KtmRm]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lltdsvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\clr_optimization_v2.0.50727_64]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\clr_optimization_v2.0.50727_64]"DelayedAutoStart"=dword:00000001[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\clr_optimization_v2.0.50727_32]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\clr_optimization_v2.0.50727_32]"DelayedAutoStart"=dword:00000001[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSiSCSI]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\swprv]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MMCSS]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Netlogon]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\napagent]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Netman]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\netprofm]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NlaSvc]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\nsi]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CscService]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WPCSvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PNRPsvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\p2psvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\p2pimsvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\pla]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PlugPlay]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\IPBusEnum]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PNRPAutoReg]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WPDBusEnum]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Power]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Spooler]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wercplsupport]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PcaSvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ProtectedStorage]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\QWAVE]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RasAuto]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RasMan]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TermService]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UmRdpService]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RpcLocator]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RemoteRegistry]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RemoteAccess]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\RpcEptMapper]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\seclogon]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SstpSvc]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wscsvc]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wscsvc]"DelayedAutoStart"=dword:00000001[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ShellHWDetection]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SCardSvr]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SCPolicySvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SNMPTRAP]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\sppsvc]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\sppsvc]"DelayedAutoStart"=dword:00000001[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\sppuinotify]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SSDPSRV]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SysMain]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SENS]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TabletInputService]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Schedule]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\lmhosts]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TapiSrv]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Themes]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\THREADORDER]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TBS]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\upnphost]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ProfSvc]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\vds]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VSS]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WebClient]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AudioSrv]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\AudioEndpointBuilder]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SDRSVC]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WbioSrvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WcsPlugInService]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wcncsvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WinDefend]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WinDefend]"DelayedAutoStart"=dword:00000001[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WerSvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Wecsvc]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MpsSvc]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\FontCache]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\StiSvc]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\msiserver]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Winmgmt]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WinRM]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wuauserv]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wuauserv]"DelayedAutoStart"=dword:00000001[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WinHttpAutoProxySvc]"Start"=dword:00000004[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\dot3svc]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Wlansvc]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\wmiApSrv]"Start"=dword:00000003[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation]"Start"=dword:00000002[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\WwanSvc]"Start"=dword:00000004