IE is part of Windows, so you will see updates for it whether you use it or not. If you are seeing updates specifically dealing with Office, then you have it or some part of it installed. You don't get updates for a product that isn't there.
Show the updates you're getting. It may be that the updates are for .NET and other security problems. If you don't have Office installed you shouldn't get updates for it but some of the updates are for other interfaces. Windows 7 uses IE whether you do or not so I would keep it up to date as well.
My Computer
At a glance
Windows 7 Pro-x64i7-2600 3.4GHz - 3.8GHz Turbo8Gb - 2x4GB, Muskin 991770 PC3-1333Integrated Intel HD 2000
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Built 2/11/2011
OS
Windows 7 Pro-x64
CPU
i7-2600 3.4GHz - 3.8GHz Turbo
Motherboard
Intel DH67BL-B3
Memory
8Gb - 2x4GB, Muskin 991770 PC3-1333
Graphics Card(s)
Integrated Intel HD 2000
Sound Card
Integrated Intel 10.1 HD, RealTek ALC892
Monitor(s) Displays
Asus LCD VH222H, Haier HL24XSL2a
Screen Resolution
1920x1080, 1920x1080
Hard Drives
Crucial SSD C300-128Gb,
Western Digital WD5002AALX - 500Gb,
Western Digital WD7501AALS - 750Gb
PSU
Seasonic 650W 80+ Gold Modular
Case
Rosewill Defender
Cooling
Stock CPU, Four 120mm case fans, PCH fan added
Keyboard
Logitech EX100 Y-RBH94 Wireless
Mouse
Logitech EX100 M-RCE95 Wireless
Internet Speed
3.0/1.5 Mbs
Antivirus
Microsoft Security Essentials
Browser
Microsoft Internet Explorer 11
Other Info
Antec Veris Premier-Multimedia IR Station,
Cyber Accoustics-3602 Speakers,
AFT XM-5U Card Reader,
Hauppauge TV-HVR-2250,
Sony LX300 USB Turntable
Power Point is part of the MS Office series. You'll get security and program updates for all Office products that interface with PP or use the same data link libraries. The auto update process is pretty smart. I would apply any updates you get. One came through today, for me, that included a performance update for all Office products. That sounds like it might be a shared .dll file. Unless you can spend time researching each bulletin, just let the Office updates apply.
And +1 for IE. These may include security updates for Windows' interface not just IE.
My Computer
At a glance
Windows 7 Pro-x64i7-2600 3.4GHz - 3.8GHz Turbo8Gb - 2x4GB, Muskin 991770 PC3-1333Integrated Intel HD 2000
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Built 2/11/2011
OS
Windows 7 Pro-x64
CPU
i7-2600 3.4GHz - 3.8GHz Turbo
Motherboard
Intel DH67BL-B3
Memory
8Gb - 2x4GB, Muskin 991770 PC3-1333
Graphics Card(s)
Integrated Intel HD 2000
Sound Card
Integrated Intel 10.1 HD, RealTek ALC892
Monitor(s) Displays
Asus LCD VH222H, Haier HL24XSL2a
Screen Resolution
1920x1080, 1920x1080
Hard Drives
Crucial SSD C300-128Gb,
Western Digital WD5002AALX - 500Gb,
Western Digital WD7501AALS - 750Gb
PSU
Seasonic 650W 80+ Gold Modular
Case
Rosewill Defender
Cooling
Stock CPU, Four 120mm case fans, PCH fan added
Keyboard
Logitech EX100 Y-RBH94 Wireless
Mouse
Logitech EX100 M-RCE95 Wireless
Internet Speed
3.0/1.5 Mbs
Antivirus
Microsoft Security Essentials
Browser
Microsoft Internet Explorer 11
Other Info
Antec Veris Premier-Multimedia IR Station,
Cyber Accoustics-3602 Speakers,
AFT XM-5U Card Reader,
Hauppauge TV-HVR-2250,
Sony LX300 USB Turntable
Will installing Office Suite updates for programs not-installed leave unnecessary 'junk' in Windows? Or is the Update procedure smart enough to know not to.
If you've ever run a certification, you can see exactly what MS knows about your system. The auto update function uses similar results to know what patches/updates to apply. It can't apply updates to software you don't have. However; some updates contain patches to MS Office as a package and not individual applications. As already stated, these are most likely shared updates that apply to all applications in the Office group. If I were presented with an "Office" update, I would certainly apply it even if you have only one of the applications.
My Computer
At a glance
Windows 7 Pro-x64i7-2600 3.4GHz - 3.8GHz Turbo8Gb - 2x4GB, Muskin 991770 PC3-1333Integrated Intel HD 2000
Computer type
PC/Desktop
Computer Manufacturer/Model Number
Built 2/11/2011
OS
Windows 7 Pro-x64
CPU
i7-2600 3.4GHz - 3.8GHz Turbo
Motherboard
Intel DH67BL-B3
Memory
8Gb - 2x4GB, Muskin 991770 PC3-1333
Graphics Card(s)
Integrated Intel HD 2000
Sound Card
Integrated Intel 10.1 HD, RealTek ALC892
Monitor(s) Displays
Asus LCD VH222H, Haier HL24XSL2a
Screen Resolution
1920x1080, 1920x1080
Hard Drives
Crucial SSD C300-128Gb,
Western Digital WD5002AALX - 500Gb,
Western Digital WD7501AALS - 750Gb
PSU
Seasonic 650W 80+ Gold Modular
Case
Rosewill Defender
Cooling
Stock CPU, Four 120mm case fans, PCH fan added
Keyboard
Logitech EX100 Y-RBH94 Wireless
Mouse
Logitech EX100 M-RCE95 Wireless
Internet Speed
3.0/1.5 Mbs
Antivirus
Microsoft Security Essentials
Browser
Microsoft Internet Explorer 11
Other Info
Antec Veris Premier-Multimedia IR Station,
Cyber Accoustics-3602 Speakers,
AFT XM-5U Card Reader,
Hauppauge TV-HVR-2250,
Sony LX300 USB Turntable