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前一段而时间试用了一下 TG PC桌面版。用了半天感觉没有网页版好用，就卸载了！
卸载以后问题就来了。
1）网页打开一个频道，会弹出提示！
2）网页版在后台运行时，浏览器会显示有活动提示（非消息提示）。
看来是Telegram没有卸载干净！需要清理注册表！
Win + R --> regedit --> 搜索telegram --> 清理掉数据
