Solved! Help.. me to fixed my dell D620

Solution
How to reboot or reset my dell D620

When you say "reboot" do you mean do a factory reset? Many people use the word reboot when they actually mean reset.

https://www.dell.com/community/Laptops-General-Read-Only/Latitude-D620-restore-problems/td-p/4467921

If you don't have the original build of the operating system, which is very likely, you will either need to find a set of restore disks for your system somewhere or use a base Windows disk and then install all the drivers from Dell support site.
How to reboot or reset my dell D620

When you say "reboot" do you mean do a factory reset? Many people use the word reboot when they actually mean reset.

https://www.dell.com/community/Laptops-General-Read-Only/Latitude-D620-restore-problems/td-p/4467921

If you don't have the original build of the operating system, which is very likely, you will either need to find a set of restore disks for your system somewhere or use a base Windows disk and then install all the drivers from Dell support site.
 
Solution