云淡风轻

检查键盘，是不是Enter键没有弹起，或者被其他物体压住了

除了Ctrl+Alt+Del的方式外，还可以用Ctrl+Shift+Esc的组合键来打开任务管理器 如果都打不开，按Win+R打开运行窗口，输入taskmgr.exe，看能不能打开任务管理器

其他浏览器能正常上网吗？

Line是一个网站吗？QR码是什么，密码？ 请解释。

你是不是没有安装Office软件，还是不小心卸载了？ 因为所有没有显示的图标，都是office的文档。

Win 8系统？ 试试删除，然后再重建一个图标

打开任务管理器，查看进程，看软件是否已经在运行

用下载器下载比直接通过浏览器下载速度快很多，如迅雷，将下载链接粘贴进去就行了。你电脑内存这么少，用的还是Win7的系统，建议你用Word 2007吧，不然你的系统会很卡的

SGTOOL.exe，百度搜索的结果是搜狗输入法的。把搜狗输入法卸载后试试，没问题了在重装输入法。

建议你还是用2003吧 首先，你的内存太低，运行Win7已经是勉强，如果再运行2007，会更加吃力，系统会很慢。 其次，2007是需要注册激活的，虽然有所谓的破解版，但不建议使用，版权问题。 如果真的要装2007，是可以兼容的，但还是卸载2003后再装2007会更好。 额外建议： 1，按你的硬件配置，最合适的系统是XP 2，要使用Win7，最好增加内存，至少2GB。然后换个500GB的硬盘，C盘太小会影响系统性能，至少要60GB

You need to upload a thumbnail to let us know, which dll

Your browser has installed too many extensions/add-ons/tool bars/plug-ins IE: click Tools-->Manage Add-ons-->Toolbars and Extensions, disable useless add-ons. Chrome: type chrome://extensions/ in address bar and press Enter, disable useless extensions.

So Microsoft develop Win 7/8 to replace Vista. Hope these two articles can help you. http://wisecleaner.com/think-tank-content-93.html http://wisecleaner.com/think-tank-content-94.html

Do you means you restore system fail? Please close / disable your antivirus software or system protecting software, then start to use system restore point to restore your system.

You need to upload your thumbnail again.

Can you find it in system control panel? I suggest you to download and install the latest version again.

动态瓷砖？开始桌面的磁贴吧。是所有程序都没有反应，还是部分？点了以后出现什么情况。

Can you tell me your physical memory size and your OS info? 1, It sounds like there may not enough memory to use. You can add more physical memory, or close running programs. 2, Sorry, I don't know what is 'charms bar' 3, XP system: click Start menu, click Run, type msconfig and press Enter Vista/7 system: click Start menu, type msconfig in search box and press Enter then click Boot tab, can you see startup programs?

First off, make sure you’re not using more than one antivirus program at the same time. Using Windows Defender alongside, say, Avira, could cause some serious problems whenever each app tries to access the same thing at the same time. If that’s not the case, your drivers may be in need of an update, especially if this started when you added a new part or peripheral to your computer. Be sure to update these drivers if possible, or use System Restore to revert your computer to an earlier state. Besides that, your BIOS may need an update, or you may need to run a diagnostic on your hard drive or your RAM. For your hard drive, try a disk check — type in chkdsk.exe on your Start Menu or Start Screen and execute it. (Learn more about chkdsk.) Your computer will be restarted and a disk check will run, ridding your hard drive of corrupted or misplaced sectors. If you’ve done all of these things and you’re still encountering this error, you may simply have a virus. Try scanning your machine and seeing what comes up.

You can try some steps to fix it: 1, Remove DNS cache click Start Menu-->type CMD.exe in search box-->right click on cmd.exe-->select Run as administrator-->enter ipconfig /flushdns press Enter to run this order. Open a new page to try. 2, If it still cannot work. Uninstall Firefox, restart computer, reinstall Firefox. 3, Close firewall to try.

Sorry, I cannot help you. Please refer this page, maybe it can help you. http://www.howtouncle.com/2013/05/how-can-solve-problems-with-windows-8.html

Understand. Try this way. 1, Right click My PC 2, Click Properties 3, Click Device Manager 4, Click Imaging devices 5, Right click your WebCam device 6, Click Properties 7, Click Roll Back Driver Maybe Windows 8 default driver can solve this problem.

I think you can check BIOS settings, maybe USB device support was disabled.

Do you means when you start Win8, you can see two operation options, one is Win8, another is Win Loader.exe? If yes, please press Win+R and type msconfig.exe, and press Enter. Click Boot, you will see two items, click Win Loader.exe then click Delete to remove it, or Set as default.

Hope following steps can help you. 1, Open Control Panel-->Programs-->Turn Windows features on or off. If you're prompted for an administrator password or confirmation, type the password or provide confirmation. 2, Deselect Internet Explorer 11 3, Click OK and restart computer. 4, Follow the same steps to turn on the Internet Explorer 11 by selecting the check box.