دختـر مهتابــــ...تو نت جستجو کردم
System Restore کن اگه جواب نداد
Step 1. Find the lost partition in Disk Management. You can press “Win + R” and type “diskmgmt.msc” in the Run window, and then press OK to open Disk Management. If a partition is deleted, the disk space will be marked as Unallocated. Remember the partition size.
Step 2. Run CMD as administrator.
Step 3. Type diskpart in the window and press Enter.
Step 4. Type list disk and press Enter key. After that, you will see all disks on the computer.
Step 5. Type select disk # and press Enter (Replace # with the number of the hard drive that contains lost partition).
Step 6. Type list volume and press Enter.
Step 7. Type select volume # and press Enter (replace # with the number of lost partition).
Step 8. Type assign letter=# and press Enter (Replace # with an available drive letter).
استفاده از برنامه AOMEI Partition Assistant Professional