If you uninstall, on reboot they should automatically re-install.
Thank you for replying. I have no idea. I think my laptop is getting a bit old now. I have had it for nearly 2 years, my granddaughter used it for uni, and my son had it before that. The battery icon disappeared about 6 months ago for the first time. I found out how to refresh the taskbar and it came back, then disappeared again last week. Refreshing the taskbar didn't work this time.
You will have to do further investigating to find out how/if your laptop power management is being controlled.
If your laptop is using any manufacturer utility programs, these are often found in a folder on the Windows start button in the manufacturer's name (HP, Dell etc.)
If you have inherited the laptop, you may well be seeing controls greyed out, and being told you don't have permission to make changes, if you are not an administrative user on the device. You can check that (on a Windows 10 device) by right clicking on the Windows start button and choosing 'Settings' from the popup window that appears.
From the Settings page choose 'Accounts' and select 'Your info' from the panel on the LHS. It should show you your account name under the large account icon and then say 'Standard' or 'Administrator'. If you are a standard user, you will be restricted on certain things you can change. You would need to use an administrator account on the laptop to change your account from standard to administrator.
