You should move the tempdb to another drive which has enough space. You can move the tempdb database without issue. Moving the tempdb database is actually very easy.
<pre>ALTER DATABASE tempdb
MODIFY FILE (name=’tempdev’, filename=’D:\Path\To\Where\It\Will\Be\tempdev.mdf’)
ALTER DATABASE tempdb
MODIFY FILE (name=’templog’, filename=’D:\Path\To\Where\It\Will\Be\templog.ldf’)
Just change the drive letters and paths to be where you want to put the files.
After you run that (make sure that the folders are correct and exist) then restart the SQL Service. When SQL restarts the SQL Server will create the tempdb in the new location and you can delete the old files.