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Windows10系统运行软件的时候提示没有注册类的解决办法
1.使用快捷键`Win+R`打开运行窗口,然后输入`services.msc`然后回车确认。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/102248fa9f2bd.jpeg) 2.在打开的服务页面中找到并双击“User Manager”服务。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/10224625cff25.jpg) 3.在打开的“User Manager的属性”窗口中,把其启动类型修改为“自动”,接着点击“确定”按钮,然后重新启动电脑就可以了。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/1022467dfeb87.jpg)
Windows系统gpedit.msc找不到的解决方法
1.鼠标右键选择“新建”然后点击“文本文档”。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/101927583a35a.jpeg) 2.在文本文档中输入以下代码,然后保存。 Windows Registry Editor Version 5.00[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Group Policy Objects\LocalUser\Software\Policies\Microsoft\MMC][-HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Group Policy Objects\LocalUser\Software\Policies\Microsoft\MMC\{8FC0B734-A0E1-11D1-A7D3-0000F87571E3}]"Restrict_Run"=dword:00000000[HKEY_CURRENT_USER\Software\Policies\Microsoft\MMC][-HKEY_CURRENT_USER\Software\Policies\Microsoft\MMC\{8FC0B734-A0E1-11D1-A7D3-0000F87571E3}]"Restrict_Run"=dword:00000000[HKEY_CURRENT_USER\Software\Policies\Microsoft\MMC]"RestrictToPermittedSnapins"=dword:00000000 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/101929e876eb6.jpeg) 3.然后将文件后缀名更改为.reg,双击运行以后就可以找到了,重启电脑以后再次输入gpedit.msc命令就可以打开组策略了。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/1019316504ebb.jpeg)
Centos7.6如何查看最近一次系统启动时间
1.输入该命令按回车键即可查看:`date -d "$(awk -F. '{print $1}' /proc/uptime) second ago" +"%Y-%m-%d %H:%M:%S"` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/1017327ab5b66.jpeg)
Mac系统如何刷新DNS缓存
1.打开终端 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/10122733c28c5.jpeg) 2.输入该命令按回车键即可:`sudo dscacheutil -flushcache` ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/1012282d46265.jpeg)
Windows10系统更改用户名找不到本地用户的解决办法
1.使用快捷键`Win+R`打开运行窗口,然后输入`MMC`然后回车确认。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/101016d6663fa.jpeg) 2.点击左上角的“文件”,接着点击下方选项列表中的“添加/删除管理单元”。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/101018d055685.jpeg) 3.然后选中左侧栏中的“本地用户和组”,并点击中间的“添加”按钮,最后点击“确定”就可以了。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/101020d3d09eb.jpeg)
Windows10系统控制面板打开后出现错误的解决办法
1.使用快捷键`Win+R`打开运行窗口,然后输入`regedit`然后回车确认。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/100820e039912.jpeg) 2.在打开的窗口界面中,将`计算机\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\MyComputer\BackupPath`复制粘贴到上方地址栏中并回车定位到此。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/100823124905f.jpeg) 3.后将“MyComputer”文件夹中的所有子目录全部删除即可解决问题。 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-11-09/100825b16aca5.jpeg)
Ubuntu18.04系统中如何安装json文本处理器jq
如何安装命令行浏览器elinks呢?本文给出详细说明。 1.更新apt资源 **sudo apt-get update** ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-10-31/17394852c654e.jpg) 2.安装elinks,等待安装完成 **apt-get install elinks** ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-10-31/17394844c0606.jpg)
Ubuntu18.04系统中如何安装命令行浏览器elinks
如何安装命令行浏览器elinks呢?本文给出详细说明。 1.更新apt资源 **sudo apt-get update** ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-10-31/17394852c654e.jpg) 2.安装elinks,等待安装完成 **apt-get install elinks** ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-10-31/17394844c0606.jpg)
Ubuntu下卸载vsftpd出现dpkg报错处理方法
1.卸载vsftpd出错 apt remove vsftpd Reading package lists... Done Building dependency tree... Done Reading state information... Done The following package was automatically installed and is no longer required: ssl-cert Use 'apt autoremove' to remove it. The following packages will be REMOVED: vsftpd 0 upgraded, 0 newly installed, 1 to remove and 56 not upgraded. 1 not fully installed or removed. After this operation, 326 kB disk space will be freed. Do you want to continue? [Y/n] Y (Reading database ... 105321 files and directories currently installed.) Removing vsftpd (3.0.5-0ubuntu1) ... dpkg: error processing package vsftpd (--remove): Processing was halted because there were too many errors. E: Sub-process /usr/bin/dpkg returned an error code (1) ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-10-31/173542f224bde.jpg) 2.解决方法 \# 手动删除用户ftp sudo deluser --system ftp ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-10-31/173542fb0f573.jpg) 如果提示 `The user `ftp' is not a system user. Exiting.`,可以执行一下命令 sudo deluser ftp \# 删除vsftpd sudo apt remove vsftpd
Ubuntu系统如何安装跟使用tcping命令
1.安装所需要的依赖包 apt-get install tcptraceroute bc -y ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-10-31/1733488c7ef15.jpg) 2下载tcping工具 wget http://www.vdberg.org/~richard/tcpping -O /usr/bin/tcping ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-10-31/173348988a089.jpg) 3设置tcping权限 chmod +x /usr/bin/tcping 4测试工具可用性 tcping www.baidu.com 443 ![img](https://public-1251015552.cos.ap-guangzhou.myqcloud.com/Uploads/image/2023-10-31/173348277f4ec.jpg)

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