{"id":29733,"date":"2022-11-10T09:30:12","date_gmt":"2022-11-10T04:00:12","guid":{"rendered":"http:\/\/198.58.113.91\/blog\/?p=29733"},"modified":"2022-11-29T22:49:56","modified_gmt":"2022-11-29T17:19:56","slug":"tzsync-exe-error-unhandled-system-io-ioexception","status":"publish","type":"post","link":"https:\/\/www.winhelponline.com\/blog\/tzsync-exe-error-unhandled-system-io-ioexception\/","title":{"rendered":"Tzsync.exe Error: Unhandled Exception (System.IO.IOException)"},"content":{"rendered":"

When you sync the time zone information using the built-in Tzsync.exe tool, an “Unhandled Exception” error occurs.<\/p>\n

Application: tzsync.exe\r\nUnhandled Exception: System.IO.IOException: The specified registry key does not exist.\r\nat Microsoft.Win32.RegistryKey.Win32Error(Int32 errorCode, String str)\r\nat Microsoft.Win32.RegistryKey.GetValueKind(String name)\r\nat TimeZoneSyncTask.DynamicDstTransform.GetDynamicDstRange(RegistryKey rkTimeZoneRoot, Dictionary`2 mapWinTzToTzid)\r\nat TimeZoneSyncTask.TimeZoneSync.Sync()\r\nat TimeZoneSyncTask.Program.Main(String[] args)<\/pre>\n
\"tzsync.exe<\/p>\n
And the following error shows up on the View Reliability History page in the classic Control Panel.<\/p>\n
TimeZone Sync Task\r\nFaulting Application Path:\tC:\\Windows\\System32\\tzsync.exe\r\n\r\nProblem signature\r\nProblem Event Name:\tCLR20r3\r\nProblem Signature 01:\ttzsync.exe\r\nProblem Signature 02:\t6.2.19041.1\r\nProblem Signature 03:\t99fdcbd2\r\nProblem Signature 04:\tmscorlib\r\nProblem Signature 05:\t4.8.4515.0\r\nProblem Signature 06:\t624ce856\r\nProblem Signature 07:\t133\r\nProblem Signature 08:\t72\r\nProblem Signature 09:\tSystem.IO.IOException\r\nOS Version:\t10.0.19045.2.0.0.256.48\r\nLocale ID:\t1033\r\nAdditional Information 1:\tcd38\r\nAdditional Information 2:\tcd383bc96f44aa9dc0e7b57396226585\r\nAdditional Information 3:\td62c\r\nAdditional Information 4:\td62c082b037d9144b39b68244953838d\r\n\r\nExtra information about the problem\r\nBucket ID:\tffc2d00a5c4e5b4c4117f9aa174b54ff (1231727532039689471)\r\n<\/pre>\n
Solution<\/h2>\n
To resolve the tzsync.exe unhandled exception error, restore the missing Time Zone keys in the registry.<\/p>\n
    \n
  1. Open an Admin CMD Prompt<\/a>.<\/li>\n
  2. Export your existing Time Zones key to a REG file. To do so, run the following command:\n
    reg export \"HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Time Zones\" c:\\tz_backup.reg<\/pre>\n<\/li>\n
  3. Exit the Command Prompt window.<\/li>\n
  4. Download timezones.reg<\/a> (zipped) and run it.
    \n(This REG file has been extracted from a Windows 10 22H2 computer.)<\/em><\/li>\n<\/ol>\n
    That should fix the tzsync.exe System.IO.IOException “The specified registry key does not exist” error.<\/p>\n","protected":false},"excerpt":{"rendered":"
    When you sync the time zone information using the built-in Tzsync.exe tool, an “Unhandled Exception” error occurs. Application: tzsync.exe Unhandled Exception: System.IO.IOException: The specified registry key does not exist. at Microsoft.Win32.RegistryKey.Win32Error(Int32 errorCode, String str) at Microsoft.Win32.RegistryKey.GetValueKind(String name) at TimeZoneSyncTask.DynamicDstTransform.GetDynamicDstRange(RegistryKey rkTimeZoneRoot, Dictionary`2 mapWinTzToTzid) at TimeZoneSyncTask.TimeZoneSync.Sync() at TimeZoneSyncTask.Program.Main(String[] args) And the following error shows up on the … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[8,869],"tags":[191,441],"class_list":["post-29733","post","type-post","status-publish","format-standard","hentry","category-windows-10","category-windows-11","tag-error-messages","tag-registry"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":19854,"url":"https:\/\/www.winhelponline.com\/blog\/error-0x800707e7-0x3000d-upgrade-windows-10\/","url_meta":{"origin":29733,"position":0},"title":"Error 0x800707E7 0x3000D during Windows Setup","author":"Ramesh","date":"November 13, 2020","format":false,"excerpt":"When you upgrade from Windows 7 or Windows 8 to Windows 10 or 11 or do a repair installation, the error 0x800707E7 \u2013 0x3000D may occur and the setup is canceled automatically. 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