Update cumulativeupdate27.md

Author: Simonx Xu

support/sql/releases/sqlserver-2019/cumulativeupdate27.md

@@ -47,7 +47,7 @@ Microsoft is working on a fix for this issue and it will be available in a futur
 
 SQL Server 2019 CU26 introduced a regression that can disable lock escalation, which causes error 1204 "The instance of the SQL Server Database Engine cannot obtain a LOCK resource at this time."
 
-To work around this issue, you can install the [CU28](cumulativeupdate28.md).
+To work around this issue, you can uninstall the CU26 or install the [CU28](cumulativeupdate28.md).
 
 ## Improvements and fixes included in this update