This happened to me a few days ago this what i did to fix it
first try open the attached file, you can open it in notepad if you think
its suspicious to see what it is, its just a reg file with the default power
schemes
should ask if you want to add the information in ..............powercfg.reg
click yes, check to see if the power schemes has returned. if this hasn't
worked then try this
Open regedit
goto HKEY_CURRENT_USER\Control Panel\PowerCfg\
delete PowerPolicies, this will remove all power schemes including custom
ones
open the attached file, should ask if you want to add the information in
...............powercfg.reg
click yes, this will restore the default power schemes
should have power schemes back
lets us know how you get on
* if for some reason you can open the attachment do this then
open notepad
copy the text between the dashes(not including the dashes)
paste into notepad and then save it as powercfg.reg to your desktop and use
this, its the same as the attachment
----------------------------------------------------------------------------
-----------------------------------------
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Control Panel\PowerCfg\PowerPolicies]
[HKEY_CURRENT_USER\Control Panel\PowerCfg\PowerPolicies]
[HKEY_CURRENT_USER\Control Panel\PowerCfg\PowerPolicies\0]
"Name"="Home/Office Desk"
"Description"="This scheme is suited to most home or desktop computers that
are left plugged in all the time."
"Policies"=hex:01,00,00,00,02,00,00,00,01,00,00,00,00,00,00,00,02,00,00,00,0
0,\
00,00,00,00,00,00,00,00,00,00,00,2c,01,00,00,32,32,00,03,04,00,00,00,04,00,\
00,00,00,00,00,00,00,00,00,00,b0,04,00,00,2c,01,00,00,00,00,00,00,58,02,00,\
00,01,01,64,50,64,64,00,00
[HKEY_CURRENT_USER\Control Panel\PowerCfg\PowerPolicies\1]
"Name"="Portable/Laptop"
"Description"="This scheme is designed for extended battery life for
portable computers on the road."
"Policies"=hex:01,00,00,00,02,00,00,00,01,00,00,00,00,00,00,00,02,00,00,00,0
1,\
00,00,00,00,00,00,00,b0,04,00,00,2c,01,00,00,32,32,03,03,04,00,00,00,04,00,\
00,00,00,00,00,00,00,00,00,00,84,03,00,00,2c,01,00,00,08,07,00,00,2c,01,00,\
00,01,01,64,50,64,64,00,00
[HKEY_CURRENT_USER\Control Panel\PowerCfg\PowerPolicies\2]
"Name"="Presentation"
"Description"="This scheme keeps the monitor on for doing presentations."
"Policies"=hex:01,00,00,00,02,00,00,00,01,00,00,00,00,00,00,00,02,00,00,00,0
1,\
00,00,00,00,00,00,00,00,00,00,00,84,03,00,00,32,32,03,02,04,00,00,00,04,00,\
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,2c,01,00,\
00,01,01,50,50,64,64,00,00
[HKEY_CURRENT_USER\Control Panel\PowerCfg\PowerPolicies\3]
"Name"="Always On"
"Description"="This scheme keeps the computer running so that it can be
accessed from the network. Use this scheme if you do not have network
wakeup hardware."
"Policies"=hex:01,00,00,00,02,00,00,00,01,00,00,00,00,00,00,00,02,00,00,00,0
0,\
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,32,32,00,00,04,00,00,00,04,00,\
00,00,00,00,00,00,00,00,00,00,b0,04,00,00,84,03,00,00,00,00,00,00,08,07,00,\
00,00,01,64,64,64,64,00,00
[HKEY_CURRENT_USER\Control Panel\PowerCfg\PowerPolicies\4]
"Name"="Minimal Power Management"
"Description"="This scheme keeps the computer on and optimizes it for high
performance."
"Policies"=hex:01,00,00,00,02,00,00,00,01,00,00,00,00,00,00,00,02,00,00,00,0
0,\
00,00,00,00,00,00,00,00,00,00,00,2c,01,00,00,32,32,03,03,04,00,00,00,04,00,\
00,00,00,00,00,00,00,00,00,00,84,03,00,00,2c,01,00,00,00,00,00,00,84,03,00,\
00,00,01,64,64,64,64,00,00
[HKEY_CURRENT_USER\Control Panel\PowerCfg\PowerPolicies\5]
"Name"="Max Battery"
"Description"="This scheme is extremely aggressive for saving power."
"Policies"=hex:01,00,00,00,02,00,00,00,01,00,00,00,00,00,00,00,02,00,00,00,0
5,\
00,00,00,00,00,00,00,b0,04,00,00,78,00,00,00,32,32,03,02,04,00,00,00,04,00,\
00,00,00,00,00,00,00,00,00,00,84,03,00,00,3c,00,00,00,00,00,00,00,b4,00,00,\
00,01,01,64,32,64,64,00,00