本文我们介绍针对Bios如何读取、写入数据，比如最常见的SN读取以及烧录
WMI查询
先看看WMI方式，可以用于查询和管理Windows系统的各种信息，包括读取BIOS信息
WMI-Win32_BIOS，可以查看Bios版本、制造商以及Bios Sn等：
1 var searcher = new ManagementObjectSearcher("SELECT * FROM Win32_BIOS");
2 Console.WriteLine("Win32_BIOS 获取bios信息:");
3 foreach (var baseObject in searcher.Get())
4 {
5 Console.WriteLine("Manufacturer: " + baseObject["Manufacturer"]);
6 Console.WriteLine("Version: " + baseObject["Version"]);
7 Console.WriteLine("SMBIOS BIOS Version: " + baseObject["SMBIOSBIOSVersion"]);
8 Console.WriteLine("Name: " + baseObject["Name"]);
9 Console.WriteLine("Release Date: " + baseObject["ReleaseDate"]);
10 Console.WriteLine("Serial Number: " + baseObject["SerialNumber"]);
11 Console.WriteLine("Status: " + baseObject["Status"]);
12 Console.WriteLine("Caption: " + baseObject["Caption"]);
13 Console.WriteLine("Build Number: " + baseObject["BuildNumber"]);
14 Console.WriteLine("Code Set: " + baseObject["CodeSet"]);
15 Console.WriteLine("Current Language: " + baseObject["CurrentLanguage"]);
16 Console.WriteLine("Description: " + baseObject["Description"]);
17 Console.WriteLine("Embedded Controller Major Version: " + baseObject["EmbeddedControllerMajorVersion"]);
18 Console.WriteLine("Embedded Controller Minor Version: " + baseObject["EmbeddedControllerMinorVersion"]);
19 Console.WriteLine("Identification Code: " + baseObject["IdentificationCode"]);
20 Console.WriteLine("Installable Languages: " + baseObject["InstallableLanguages"]);
21 Console.WriteLine("Install Date: " + baseObject["InstallDate"]);
22 Console.WriteLine("Language Edition: " + baseObject["LanguageEdition"]);
23 Console.WriteLine("List Of Languages: " + baseObject["ListOfLanguages"]);
24 Console.WriteLine("Other Target OS: " + baseObject["OtherTargetOS"]);
25 Console.WriteLine("Primary BIOS: " + baseObject["PrimaryBIOS"]);
26 Console.WriteLine("System BIOS Major Version: " + baseObject["SystemBiosMajorVersion"]);
27 Console.WriteLine("System BIOS Minor Version: " + baseObject["SystemBiosMinorVersion"]);
28 Console.WriteLine("Target Operating System: " + baseObject["TargetOperatingSystem"]);29 }
30 searcher.Dispose();也可以直接使用PowerShell：Get-WmiObject -Class Win32_BIOS，以下是主要参数信息
- SMBIOSBIOSVersion：BIOS版本号
- Manufacturer：BIOS制造商
- Name：BIOS名称
- ReleaseDate：BIOS发布的日期
- SerialNumber：系统序列号
- Version：BIOS版本
这是个人电脑获取结果：
电脑-系统信息中的Bios版本信息，是以上面Bios制造商+Bios版本+发布日期拼接显示：
WMI-Win32_BaseBoard，可以获取主板SN以及主板制造商：
1 var searcher1 = new ManagementObjectSearcher("SELECT * FROM Win32_BaseBoard");
2 Console.WriteLine("Win32_BaseBoard获取bios信息：");
3 foreach (var baseObject in searcher1.Get())
4 {
5 Console.WriteLine("Board Serial Number: " + baseObject["SerialNumber"]);
6 Console.WriteLine("Manufacturer: " + baseObject["Manufacturer"]);
7 Console.WriteLine("Product Name: " + baseObject["Product"]);
8 Console.WriteLine("Version: " + baseObject["Version"]);
9 }
10 searcher1.Dispose();也可以使用PowerShell查看，Get-WmiObject -Class Win32_BaseBoard
个人电脑获取结果：
另外，使用命令行工具，wmic bios get name, serialnumber, version也可以获取BIOS的基本信息
Ami读写
获取Bios信息也可以使用AmiWin工具，同时此工具也可以用于数据写入。通过该工具可以轻松地自定义系统UUID、调整DMI信息，从而满足各种特定的系统需求比如指定BIOS位置的数据。其技术实现主要依赖于对BIOS固件的底层访问和修改
AMI全称American Megatrends Inc.，以BIOS/UEFI固件解决方案闻名。
读取指定位置数据：
1 private static string ReadBiosData(string command)
2 {
3 var amiExePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "AmiBios", "AMIDEWINx64.EXE");
4 var startInfo = new ProcessStartInfo
5 {
6 FileName = $"\"{amiExePath}\"",
7 Arguments = command,
8 Verb = "runas",
9 UseShellExecute = false,
10 RedirectStandardError = true,
11 RedirectStandardInput = true,
12 RedirectStandardOutput = true,
13 CreateNoWindow = true,
14 WindowStyle = ProcessWindowStyle.Hidden
15 };
16 using var process = Process.Start(startInfo);
17 if (process == null) return "";
18 process.WaitForExit();
19 string output = process.StandardOutput.ReadToEnd();
20
21 if (string.IsNullOrWhiteSpace(output)) return "读取输出结果为空";
22 string[] inputs = output.Split(new[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
23 string targetOutput = inputs.FirstOrDefault(p => p.Contains(command));
24 if (targetOutput == null) return $"输出数据:{output}未找到指定Key[{command}]的目标输出";
25 string value = ExtractMiddleContent(targetOutput, "\"", "\"");
26 return value;
27 }
28 private static string ExtractMiddleContent(string source, string begin, string end)
29 {
30 var rg = new Regex("(?<=(" + begin + "))[.\\s\\S]*?(?=(" + end + "))", RegexOptions.Multiline | RegexOptions.Singleline);
31 return rg.Match(source).Value;
32 }指定位置写入数据：
1 private static string WriteBiosData(string command, string data)
2 {
3 var amiExePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "AmiBios", "AMIDEWINx64.EXE");
4 var args = $"{command} \"{data}\"";
5 var startInfo = new ProcessStartInfo
6 {
7 FileName = $"\"{amiExePath}\"",
8 Arguments = args,
9 Verb = "runas",
10 UseShellExecute = false,
11 RedirectStandardError = true,
12 RedirectStandardInput = true,
13 RedirectStandardOutput = true,
14 CreateNoWindow = true,
15 WindowStyle = ProcessWindowStyle.Hidden
16 };
17 using var process = Process.Start(startInfo);
18 if (process == null) return "";
19 process.WaitForExit();
20 string output = process.StandardOutput.ReadToEnd();
21 if (string.IsNullOrWhiteSpace(output)) return "写入输出结果为空";
22 string[] inputs = output.Split(new[] { "\r\n" }, StringSplitOptions.RemoveEmptyEntries);
23 string targetOutput = inputs.FirstOrDefault(p => p.Contains(command));
24 if (targetOutput == null) return $"输出数据:{output}未找到指定指令[{command}]的目标输出";
25 return "成功";
26 }下面使用AMI，对/BS位置测试读写：
1 private void AmiReadButton_OnClick(object sender, RoutedEventArgs e)
2 {
3 var boardSn = ReadBiosData("/BS");
4 Console.WriteLine($"读取/BS:{boardSn}");
5
6 var result = WriteBiosData("/BS", "TEST");
7 Console.WriteLine($"写入/BS:{result}");
8 var boardSnNew = ReadBiosData("/BS");
9 Console.WriteLine($"读取/BS:{boardSnNew}");
10 }上方Demo见仓库：https://github.com/kybs00/BiosDataDemo
值得说明的是， Bios数据写入是一个高风险操作，在操作要避免断电，不然可能因为错误的BIOS文件导致一堆的启动问题
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