Is it safe to delete from the registry entries
like these?

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Curr entVersion\Installer\Comp
onents\2EE03A8E83823D113A5D000CF497988D]

String Value 32 Zeros
00000000000000000000000000000000 Left pane

Dat Value
C?\\WINDOWS\\SYSTEM\\Msvcirt.dll Left pane


[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\Curr entVersion\Installer\Comp
onents\8B8B1E7B04B72D11C810000CF4BBFC9F]

String Value 32 Zeros Left Pane
00000000000000000000000000000000

Dat Value Left Pane
C:\\WINDOWS\\SYSTEM

Zeros are in equal number of characters
of the left hand pane key.

The (Default) is (Value not set)