multiple problems including keyboard issues & browser hijack attempts

[system]

< CurrentVersion Policy Settings [HKEY_USERS\S-1-5-18] > → HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\ →
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\ → ->
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\ActiveDesktop\ → ->
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Associations\ → ->
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\ → ->
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\NoDriveTypeAutoRun → 145 →
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\run\ → ->
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system\ → ->
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Uninstall\ → ->
HKEY_USERS\S-1-5-18\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\WindowsUpdate\ → ->
< CurrentVersion Policy Settings [HKEY_USERS\S-1-5-19] > →
HKEY_USERS\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\ →
HKEY_USERS\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\ → ->
HKEY_USERS\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\ → ->
HKEY_USERS\S-1-5-19\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\NoDriveTypeAutoRun → 145 →
< CurrentVersion Policy Settings [HKEY_USERS\S-1-5-20] > → HKEY_USERS\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\ →
HKEY_USERS\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\ → ->
HKEY_USERS\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\ → ->
HKEY_USERS\S-1-5-20\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\NoDriveTypeAutoRun → 145 →
< CurrentVersion Policy Settings [HKEY_USERS\S-1-5-21-142928211-1550766908-524529910-1006] > → HKEY_USERS\S-1-5-21-142928211-1550766908-524529910-1006\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\ →
HKEY_USERS\S-1-5-21-142928211-1550766908-524529910-1006\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\ → ->
HKEY_USERS\S-1-5-21-142928211-1550766908-524529910-1006\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\ActiveDesktop\ → ->
HKEY_USERS\S-1-5-21-142928211-1550766908-524529910-1006\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Associations\ → ->
HKEY_USERS\S-1-5-21-142928211-1550766908-524529910-1006\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\ → ->
HKEY_USERS\S-1-5-21-142928211-1550766908-524529910-1006\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\NoDriveTypeAutoRun → 145 →
HKEY_USERS\S-1-5-21-142928211-1550766908-524529910-1006\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run\ → ->
HKEY_USERS\S-1-5-21-142928211-1550766908-524529910-1006\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\System\ → ->
HKEY_USERS\S-1-5-21-142928211-1550766908-524529910-1006\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Uninstall\ → ->
HKEY_USERS\S-1-5-21-142928211-1550766908-524529910-1006\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\WindowsUpdate\ → ->