系统软件是指控制和协调计算机及外部设备,支持应用软件开发和运行的系统,是无需用户干预的各种程序的集合,主要功能是调度,监控和维护计算机系统;负责管理计算机系统中各种独立的硬件,使得它们可以协调工作。系统软件使得计算机使用者和其他软件将计算机当作一个整体而不需要顾及到底层每个硬件是如何工作的。
CCleaner是一款免费的系统优化和隐私保护工具。CCleaner的主要用来清除Windows系统不再使用的垃圾文件,以腾出更 多硬盘空间。ZOl提供CCleaner中文版下载。
CCleaner软件特性
CCleaner是一款免费的系统优化和隐私保护工具。CCleaner的主要用来清除Windows系统不再使用的垃圾文件,以腾出更 多硬盘空间。ZOl提供CCleaner下载,CCleaner正式版官方下载安装。
它的另一大功能是清除使用者的上网记录。CCleaner的体积小,运行速度极快,可以对临时文件夹、历史记录、回收站等进行垃圾清理,并可对注册表进行垃圾 项扫描、清理。附带软件卸载功能。
CCleaner更新日志
CCleaner 3.25.1872新版更新日志:
- 增加谷歌的Chrome扩展管理。
- 改进了与Windows8和Windows Server 2012的兼容。
- 改进的安全管理Firefox插件。
- 改进的内部模块的加载速度。
- 增加了使用Adobe Dreamweaver,Corel X5和Anonymizer。
- 改进了对Microsoft Office 2010和ImgBurn。
- GUI导航的改进。
- 小错误修正。
CCleaner 3.24.1850新版更新日志:
1、增加Firefox插件和扩展管理;
2、优化64-bit Wins7和Wins8结构;
3、改进的Firefox cookie清理;
4、更快的自动更新专业版。
5、GUI用户界面的改进。
6、修正小错误。
CCleaner 3.20.1750:
- Added Windows Explorer Context Menu management to Startup tool.
- Added Windows 8 Release Preview compatibility.
- Added Opera 12 support.
- Updated History cleaning for Aurora.
- Updated History cleaning for Chrome Canary.
- Improved UAC bypass code.
- Improved accuracy for uninstall items installation date and size.
- Improved Scheduled Tasks detection.
- Improved cleaning algorithm duplication detection.
- Improved file and setting removal when uninstalling.
- Minor bug fixes.
CCleaner 3.19.1721:
- Added option to skip User Account Control (UAC) warning.
- Added support for Firefox 13.0 beta.
- Moved Thunderbird to be cleaned separately.
- Improved Aurora History cleaning.
- Improved Google Chrome Saved Passwords cleaning.
- Improved Scheduled Tasks detection.
- Improved Uninstaller Installation Date on XP.
- Added cleaning for BitDefender.
- Improved detection for Malwarebytes Anti-Malware, VLC Media Player and Avast! Antivirus 6.
CCleaner 3.18.1707:
- Added support for Firefox 12 final release.
- Added support for Google Chrome 20.0 beta.
- Added multi-select to detailed results view.
- Improved support for Internet Explorer 64-bit Add-ons.
- Improved folder detection algorithm for cleaning items.
- Improved scrolling interface for Include/Excluding dialogs.
- Improved compatibility with Windows 7 alt-tab functionality.
- Improved user interface for Drive Wiper Tool.
- Added cleaning for Corel VideoStudio Pro X5, MS Security Client and GIMP 2.8.
- Improved cleaning for OpenOffice 3, AIMP 3.
- Minor GUI improvements.
- Minor bug fixes.
CCleaner 3.17更新日志:
— Cookie清理已能支持通配符
— 改进谷歌Chrome浏览器表单清理
— 改进谷歌Chrome搜索历史清理
— 新增主机记录清理
— 新增支持Google Chrome Canary分支版本
— 改进Win7跳转列表清理
— 改进清理时自动关闭浏览器选项
— 改进IE自动完成表单历史和保存密码清理
— 改进Windows 8中的快捷方式清理
— 新增支持CyberLink PhotoDirector 10, DivX player和Snagit 11.
— 改进针对Vuze, Windows Media Center, Windows Media Player,
— Corel VideoStudio Pro X4和Game Explorer的清理
— 改进BitTorrent检测
— 其它细微Bug修复和改进
Changes in CCleaner 3.14.1616 (21 Dec 2011):
- Improved Startup tool usability.
- Improved IE Add-on management.
- Improved Import/Export for Cookies.
- Improved Recycle Bin cleaning and duplicated filenames.
- Updated Chrome Canary Saved Form Information cleaning.
- Updated Chrome Canary Saved Passwords cleaning.
- Updated Chrome Canary Cookie cleaning.
- Fixed bug in long filename extensions.
- Added cleaning for Chrome Canary “Network Action Predictor”.
- Added cleaning for Real Player 15, PerfectDisk 12.5 and Windows Media Center.
- Improved cleaning for WinRAR, Windows Log Files, uTorrent and Acrobat Distiller 10.
- Minor bug fixes.
CCleanerv3.08.1475 (27 Jun 2011)
- Added support for Firefox 5.0.
- Improve Firefox History cleaning.
- Improved cleaning for Windows Error Reporting and Other Explorer MRUs.
- Added cleaning for Ditto, Evernote, I2P, McAfee AntiVirus,
MS AntiMalware, PerfectDisk, PowerISO, UltraISO, GIMP,
Go!Zilla, MagicISO.
- Improved cleaning for 7-Zip, Daemon Tools, Windows Defender.
- Improved DOMStore cookie domain discovery and cleaning.
- Improved Uninstall tool scanning and uninstalling routines.
- Improved Registry Cleaner detection algorithm.
- Improved Start Up tool detection algorithm.
- Added multiple monitor support.
- Improved shortcut key accelerators.
- Improved search response when using wild cards.
- Added support for root registry keys in the exclude list.
- Added Kazakh language.
- Minor GUI improvements and fixes.
CCleaner 3.07.1457:
- Added Flash Player SOL setting file cleaning and management.
- Added Safari Icon history cleaning.
- Added cleaning for Windows Elevated Diagnostics.
- Added cleaning for Kantaris Media Player, KMPlayer, Orbit Downloader, Pando, Sandboxie and Snagit.
- Improved cleaning for XFire, Real Player, Windows Log Files, Macromedia Shockwave 10 and 11.
- Improved Google Chrome thumbnails and favicons cleaning.
- Improved Google Chrome Saved Form Information cleaning.
- Improved Google Chrome Save Passwords cleaning.
- Improved Opera Last Download Location cleaning.
- Improved Remote Desktop cleaning.
- Improved Recent Documents cleaning.
- Improved Exclusion functionality for Registry cleaning.
- Improved Registry cleaning for Windows Services.
- Improved Drive Wiper functionality and feedback.
- Fixed bug in Cookie importing/exporting.
- Minor translation fixes.
Changes in CCleaner v3.06.1433 (26 Apr 2011):
- Added HTML5 IndexedDB cleaning and management for Firefox and Chrome.
- Added HTML5 Offline cache cleaning and management for Opera and Safari.
- Added Firefox Site Preferences cleaning.
- Added Opera Last Download Location cleaning.
- Added Opera Recently Typed URLs cleaning.
- Added Opera Session cleaning.
- Improved Chrome Most visited Sites history cleaning.
- Improved Registry reading and cleaning algorithm.
- Improved Intelligent cookie scanning.
- Improved IE Temporary Internet Files cleaning.
- Improved IE History cleaning.
- Improved "Windows Service" registry issue detection.
- Improved "ActiveX and Class Issues" registry issue detection.
- Updated Google Chrome icon.
- Added cleaning for Core FTP, FileZilla, SmartFTP, A-Squared, MySpaceIM and MusicMatch Jukebox.
- Improved cleaning for CuteFTP.
- Minor bug fixes.
 
系统软件一般是在计算机系统购买时随机携带的,也可以根据需要另行安装。