电脑维修案例大全

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电脑维修案例大全1、系统启动与关机故障【案例1】安装了不兼容的硬件驱动程序或者硬件配置不正确导致无法关机···················1【案例2】电脑启动时出现错误提示，键盘无法使用··························································3【案例3】电脑升级光驱后无法启动，出现错误提示··························································3【案例4】电脑非法关机后无法正常启动，不断重启··························································3【案例5】对电脑进行超频后无法正常启动·········································································4【案例6】系统自动更新后，无法正常启动·········································································4【案例7】电脑中装入第二块硬盘后，出现错误提示，无法启动电脑·······························4【案例8】安装两个杀毒软件后，电脑无法正常启动··························································5【案例9】安装软件后，出现错误提示，不断重启······························································5 2、电脑黑屏故障【案例10】新装电脑开机不通电，电源指示灯不亮····························································5【案例11】旧电脑升级内存和硬盘后开机黑屏，电源指示灯亮·········································6【案例12】按“Reset”键重启后黑屏，电源指示灯亮但电脑无法启动····························6【案例13】电脑非法关机后无法启动，指示灯亮，BIOS有响铃声··································73、电脑蓝屏故障【案例14】虚拟内存不足造成蓝屏·······················································································7【案例15】电脑超频后导致蓝屏···························································································7【案例16】光驱读盘时被非正常打开导致的蓝屏································································8【案例17】系统硬件冲突导致蓝屏 ·······················································································8【案例18】注册表错误导致蓝屏···························································································84、电脑死机故障【案例19】电脑总是出现没有规律的死机···········································································9【案例20】电脑看电影和处理照片正常，但玩3D游戏时死机·········································9【案例21】电脑上网时出现死机，不上网时运行正常························································9【案例22】电脑开机后鼠标乱跳，键盘不能使用，并且出现死机故障···························10【案例23】电脑从待机状态被唤醒后屏幕会变成黑屏，并且出现死机···························10【案例24】电脑总是在使用三五个小时后出现死机故障··················································115、注册表故障维修【案例25 】“我的文档”无法打开，提示被禁用································································11【案例26】单击鼠标右键无法弹出右键菜单·····································································11【案例27】删除文件时提示“文件正在使用无法删除”··················································12【案例28】注册表不能使用·································································································13I-----------------------------------------------------Page1----------------------------------------------------- 案例大全【案例29】用卸载程序无法将软件卸载·············································································136、电脑上网故障【案例30】IE浏览器提示“发生内部错误”故障·····························································13【案例31】IE浏览器提示“出现运行错误”故障·····························································15【案例32】IE浏览器窗口始终最小化故障·········································································15【案例33】宽带拨号连接提示680故障·············································································16【案例34】电脑上网时频繁掉线·························································································16【案例35】电脑上网时经常自动弹出广告页面 ··································································17【案例36】重新安装IE浏览器时无法卸载IE浏览器······················································17【案例37】“网上邻居”窗口中看不见网络中的共享文件················································17【案例38】电脑单机启动很快，但接入局域网后启动速度变慢······································187、电脑病毒与木马故障【案例39】电脑开机后，运行任何程序都死机··································································18【案例40】上网更新系统后，电脑出现经常死机故障······················································18【案例41】家中三台电脑可以互访，但都无法上网··························································19【案例42】双核电脑运行速度很慢，打开一个窗口要等半天··········································198、系统备份与还原实例【案例43】非法关机后导致系统不能正常运行 ··································································19【案例44】感染病毒后系统崩溃·························································································20【案例45】误删除系统文件导致系统无法正常启动··························································20【案例46】电脑感染病毒后导致系统瘫痪·········································································209、数据恢复与拯救实例【案例47】Word文档无法打开···························································································21【案例48】Excel文件损坏无法打开···················································································21【案例49】E-mail文件损坏无法打开·················································································22【案例50】恢复“回收站”中删除的文档·········································································22【案例51 】硬盘被分区后，硬盘中的重要文件丢失··························································22【案例52】硬盘损坏，无法读取硬盘中的数据··································································22【案例53】SM卡损坏，无法读取照片···············································································2310、系统错误提示故障【案例54】玩游戏时突然出现“虚拟内存不足”的错误提示··········································23【案例55】电脑启动后弹出打印错误提示对话框，电脑的速度变得很慢·······················23【案例56】电脑上网后经常出现“非法操作”错误提示··················································24II-----------------------------------------------------Page2----------------------------------------------------- 目录【案例57】电脑在开机启动时会弹出“Boot.ini非法操作”错误提示·····························24【案例58】玩游戏时出现“内存不足”错误提示······························································25【案例59】在电脑中运行某个软件时，总会出现“非法操作”错误提示·······················2511、电脑不断重启故障【案例60】电脑杀毒后不断自动重启，无法启动系统······················································25【案例61】新装的电脑在商家处运行正常，但在家里就不断重启··································26【案例62】电脑总是在使用一段时间后，突然自动重启··················································26【案例63】电脑新增一个DVD光驱后总是突然重启·······················································27【案例64】清洁电脑后出现不断重启故障·········································································27 12、主板故障【案例65】主板安装失误导致系统故障·············································································28【案例66】CMOS设置不能保存·························································································28【案例67】主板供电电路损坏造成黑屏故障·····································································29【案例68】主板电源故障·····································································································2913、BIOS故障【案例69】优化BIOS后总出现“非法操作”错误提示···················································29【案例70】USB鼠标无法正常使用····················································································30【案例71】电脑停电又有电后，会自动开机启动 ······························································30【案例72】电脑无法正常关机，出现关机画面后就死机··················································30【案例73】USB接口键盘无法使用····················································································30【案例74】对BIOS进行设置后，发现电脑启动不正常···················································3014、CPU故障【案例75】清洁电脑后出现黑屏故障·················································································31【案例76】在电脑中加装CPU风扇后出现开机断电故障················································31【案例77】电脑运行大型软件时经常出现死机或自动重启故障······································31【案例78】电脑开机提示系统访问注册表出错··································································32【案例79】电脑超频后使用正常，但是运行大型游戏会出现自动重启故障···················32 15、内存故障【案例80】电脑运行不正常，开机出现黑屏故障······························································33【案例81】电脑中增加一条内存后无法开机且显示器无显示··········································33【案例82】更换一条1GB内存后，电脑自检时只显示512MB的容量··························33【案例83】电脑启动时经常会自动进入安全模式······························································33【案例84】电脑优化BIOS后，频繁出现“非法操作”错误提示···································34III-----------------------------------------------------Page3----------------------------------------------------- 案例大全16、硬盘故障【案例85】开机后硬盘发出“哐当……”的响声，无法启动电脑···································34【案例86】在电脑中加装一块硬盘后，电脑无法启动······················································34【案例87】电脑启动过程中出现蓝屏死机·········································································35【案例88】电脑启动时出现“Track0Bad，DiskUnusable”错误提示···························3617、U盘故障【案例89】U盘连接到电脑后，系统提示“无法识别的设备”·······································36【案例90】U盘连接到电脑后，打开U盘时系统提示“磁盘还没有格式化”··············36【案例91】U盘连接到电脑后，电脑无法识别U盘·························································36【案例92】U盘连接到电脑后，系统没有提示检测到新硬件··········································37【案例93】U 盘摔在地上后，连接到电脑中无法被识别··················································3718、光驱刻录机故障【案例94】光驱突然不能读盘故障·····················································································38【案例95】读盘速度慢的故障·····························································································38【案例96】光驱机械故障·····································································································38【案例97】光驱不出仓故障·································································································39【案例98】托盘弹出弹入时，光驱发出很大的噪音··························································39【案例99】DVD不读盘故障·······························································································39【案例100 】刻录时缓存不足故障·······················································································40【案例101】无法识别刻录机故障·······················································································4019、显卡故障【案例102】显卡金手指被氧化导致电脑黑屏····································································41【案例103】无法正常安装显卡驱动程序···········································································42【案例104】显示器颜色不正常故障···················································································42【案例105】电脑启动后显示器出现黑屏故障····································································43【案例106】显存损坏故障···································································································43 20、声卡故障【案例107】无法安装声卡驱动程序故障···········································································43【案例108】声音失真故障···································································································44【案例109】噪声故障···········································································································44【案例110】暴音故障···········································································································44【案例111】声卡不出声故障·······························································································45IV-----------------------------------------------------Page4----------------------------------------------------- 目录21、电源故障【案例112】电源波动故障···································································································45【案例113】电源负载能力降低故障···················································································46【案例114】电源故障导致机箱带电···················································································46【案例115】电源风扇故障导致系统不稳定········································································46【案例116】主机噪音过大故障···························································································46【案例117】电源故障导致显示器画面抖动········································································4722、显示器故障 【案例118】显示器接触不良故障·······················································································47【案例119】显示器电源电路损坏故障···············································································48【案例120】CRT显示器开关电源故障维修·······································································48【案例121】CRT显示器无光栅、无显示并发出“吱吱”声故障····································48【案例122】CRT显示器不通电故障···················································································49【案例123】打开LCD显示器电源开关后，电源指示灯不亮··········································49【案例124】LCD显示器电源指示灯亮，但无法显示·······················································49【案例125】LCD显示器文字显示不正常··········································································5023、鼠标键盘故障 【案例126】鼠标按键失灵···································································································50【案例127】键盘进水无法使用···························································································51【案例128】键盘按键失灵···································································································51【案例129】键盘出现连键故障···························································································5124、打印机故障【案例130】打印不清晰·······································································································51【案例131】色带不走或时动时不动···················································································52【案例132】打印机不走纸 ···································································································52【案例133】打印时发出异声·······························································································52【案例134】有打印声但打印空白·······················································································53【案例135】更换新墨盒后打印机仍然提示“墨尽”························································53【案例136】打印机不打印···································································································53【案例137】打印机安装驱动后系统提示“找不到打印机”············································53【案例138】打印机只能打印一张纸···················································································54【案例139】打印机通电后无法工作···················································································54【案例140】无法打印电脑中的联机内容 ···········································································54【案例141】打印机无法自检打印·············································································