This depends on the specific RAM. I would be concerned they don't use the same type of RAM if one is Windows 7 and one is Windows 10. Winodws 7 was in DDR3 times and Winodws 10 would almost certainly have DDR4. Those RAM standards don't use quite the same pin layout and a DDR stick wouldn't fit in a DDR4 slot and vice versa.
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This depends on the specific RAM. I would be concerned they don't use the same type of RAM if one is Windows 7 and one is Windows 10. Windows 7 was in DDR3 times and Windows 10 would almost certainly have DDR4. Those RAM standards don't use quite the same pin layout and a DDR stick wouldn't fit in a DDR4 slot and vice versa.
What model specifically are each of the laptops so we can check what sort of RAM would be installed. The model number would be listed on the bottom panel, possibly under the battery depending on the machine. Even the PN which usually ends in #ABA on HP products is helpful.
You can also post pictures of the RAM sticks if that makes more sense.
This depends on the specific RAM. I would be concerned they don't use the same type of RAM if one is Windows 7 and one is Windows 10. Winodws 7 was in DDR3 times and Winodws 10 would almost certainly have DDR4. Those RAM standards don't use quite the same pin layout and a DDR stick wouldn't fit in a DDR4 slot and vice versa.
What model specifically are each of the laptops so we can check what sort of RAM would be installed. The model number would be listed on the bottom panel, possibly under the battery depending on the machine. Even the PN which usually ends in #ABA on HP products is helpful.
You can also post pictures of the RAM sticks if that makes more sense.