Hello,
Thank you for posting in Q&A forum.
Disk partitioning will not directly affect the software you previously installed on the D: drive. The partitioning operation only re partitions the disk space and allocates a portion of it to a new partition, without affecting existing files or installed software. Therefore, you can safely partition the disk without worrying about previously installed software being deleted or affected.
Hope this answer can help you well.
Best regards,
Jill Zhou