首先尝试卸载和重新安装SyncToy，修复SQL服务器数据库等 - 但在我的情况下它们都不起作用。

如果还无法恢复，请尝试以下操作：

转到"控制面板"下的"添加/删除程序"，然后查找名为
Microsoft Sync Framework 2.0提供程序服务的条目。选择条目并单击"修复"。如果您通过系统清理丢失了文件，请从此位置下载download.microsoft.com/download/a/6/4/a6496cd0-e312-4eee-8bae-7abeceb9284d/ProviderServices-v2。 0-x86-ENU.msi

现在重启SyncToy，它应该可以正常工作。

享受。

my Synctoy 2.1 has stopped working, error message "failed to create folder pair. Failed to create provider" I tried deleting and re-establishing, did not work, same message. Tried downloading synctoy again, would not download - anyone with an answer how to fix?. Has worked well for a long time, seems to have failed post the last bunch of upgrades that came through.

First try uninstalling and re-installing SyncToy, repairing the SQL server database, etc. – but none of them worked in my case.

If you also fail to restore, try the following:

Go to Add / Remove programs under Control panel and look for the entry that says Microsoft Sync Framework 2.0 Provider Services. Select the entry and click Repair.If you have lost the file through system cleanup etc, download from this location download.microsoft.com/download/a/6/4/a6496cd0-e312-4eee-8bae-7abeceb9284d/ProviderServices-v2.0-x86-ENU.msi

Now restart SyncToy and it should work just fine.

enjoy.