diff --git a/t-sql/README.md b/t-sql/README.md
index 8c94c62..2bd646d 100644
--- a/t-sql/README.md
+++ b/t-sql/README.md
@@ -29,6 +29,40 @@ FROM @IDList l
 LEFT JOIN VAL vv ON l.ID = vv.OBJ_ID;
 ```
 
+## String Suche über alle Tables einer DB
+
+``` sql
+DECLARE @SearchStr NVARCHAR(100) = '%wikidata%' -- Replace with the string you want to search
+DECLARE @SQL NVARCHAR(MAX) = ''
+
+-- Generate the SQL for each table and column
+SELECT @SQL = @SQL + 'SELECT ''' + TABLE_SCHEMA + '.' + TABLE_NAME + ''' AS TableName, ''' 
+    + COLUMN_NAME + ''' AS ColumnName, ' 
+    + 'CAST(' + QUOTENAME(COLUMN_NAME) + ' AS NVARCHAR(4000)) AS ColumnValue ' 
+    + 'FROM ' + QUOTENAME(TABLE_SCHEMA) + '.' + QUOTENAME(TABLE_NAME) + ' ' 
+    + 'WHERE CAST(' + QUOTENAME(COLUMN_NAME) + ' AS NVARCHAR(4000)) LIKE ''%' + @SearchStr + '%'' UNION ALL '
+FROM INFORMATION_SCHEMA.COLUMNS 
+WHERE DATA_TYPE IN ('char', 'varchar', 'nchar', 'nvarchar', 'text', 'ntext')
+
+-- Remove the last UNION ALL
+SET @SQL = LEFT(@SQL, LEN(@SQL) - 10)
+
+-- Execute the dynamically constructed SQL
+EXEC sp_executesql @SQL
+```
+
+## convert Unix Timestamp to date
+
+``` sql
+SELECT pid, 
+  dateadd(hh,-5,dateadd(s, convert(bigint, cDate) / 1000, convert(datetime,'1-1-1970 00:00:00'))), 
+  dateadd(hh,-5,dateadd(s, convert(bigint, mDate) / 1000, convert(datetime,'1-1-1970 00:00:00'))), 
+  mDate,
+  dcTitle 
+  FROM databasename_xy.dbo.tablename_xy
+  WHERE pid like 'test:%'';
+```
+
 ## Mehrere Zeilen zusammen in 1 Zeile mergen
 
 Annahme:
diff --git a/win-sysadmin/README.md b/win-sysadmin/README.md
new file mode 100644
index 0000000..7099661
--- /dev/null
+++ b/win-sysadmin/README.md
@@ -0,0 +1,33 @@
+---
+gitea: none
+include_toc: true
+---
+# Windows Sysadmin
+
+## Autostart
+
+Windows-R Tastenkombination, anschliessend `shell:startup`
+
+## .NET
+
+### .NET Version herausfinden
+
+Variante 1
+
+  - In Registry nachschauen unter ''HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\NET Framework Setup\NDP\v4\Full'', im Feld ''release'', die 6-stellige Nummer in Klammern. (siehe auch [[https://docs.microsoft.com/en-us/dotnet/framework/migration-guide/how-to-determine-which-versions-are-installed]])
+  - Release-Nummer unter [[https://docs.microsoft.com/en-us/dotnet/framework/migration-guide/how-to-determine-which-versions-are-installed#version_table]] nachschauen.
+
+Variante 2
+
+``` powershell
+Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP' -Recurse | Get-ItemProperty -Name Version,Release -ErrorAction SilentlyContinue | Where-Object { $_.PSChildName -match '^(?!S)\p{L}'} | Select-Object PSChildName, Version, Release
+```
+
+## Windows Services/Dienste
+
+### cdpusersvc deaktivieren
+
+  - In Registry nach key `cdpusersvc` suchen. Überall bei "start" auf 4 setzen. 
+  - admin-cmd öffnen, dann `pwsh`.
+  - `sc config cdpusersvc type=own`
+  - `nssm remove cdpusersvc`
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