Question:

My project drawings was saved in D: driver of the old computer. Now my new computer only has C: driver.

If I copy my project folder to C: driver, all xref links are missing.

Solution:

You can copy all project folders under a new folder in C: driver then use DOS command "subst" to create a Virtual Driver D: from this folder.

Please refer the link below:

Create a Virtual Drive for Your Desired Folder in My Computer Using Subst Command