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Serial Port
Posts: 22
Registered: ‎10-30-2009
Location: United States
Accepted Solution

What is UNCServer.exe?

I am running Windows 7 on a ThinkPad T410. I have all the latest updates installed from both Microsoft and Lenovo.


When I use Alt+Tab, I see the following application.


It is located here: C:\Program Files\Lenovo\System Update\UNCServer.exe


Can anyone tell me what this does and why it is always running on my computer?

Bit Torrent
Posts: 1,213
Registered: ‎12-24-2010
Location: Perth, Australia
0 Kudos

Re: What is UNCServer.exe?

Hello mate,


The latest version of TVSU let that thing open all the time. Don't know what it is. I have to close that manually each time I check for updates with TVSU.


Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information on it.

ThinkPad T510 4313-CTO Windows 8 x64 - Intel Core i7-620M - NVIDIA NVS 3100M - 8GB RAM - 240GB SSD- Intel Centrino Ultimate-N 6300 - Gobi 2000.
ThinkPad Helix 3697-CTO Windows 8.1 x64 - Intel Core i7-3667U - Intel HD Graphics 4000 - 8GB RAM- 256GB SSD - Intel Centrino Advanced-N 6205 - Ericsson C5621gw

Serial Port
Posts: 22
Registered: ‎10-30-2009
Location: United States
0 Kudos

Re: What is UNCServer.exe?

Good call. I rebooted and it wasn't there. I open and closed ThankVantage System Update, but UNCServer.exe remains running in the background.

What's DOS?
Posts: 1
Registered: ‎05-29-2011
Location: Europe

Re: What is UNCServer.exe?

Even worse: if you are using windows firewall, when you start lenovo system update, two inbound rules are programmatically inserted in the firewall that permit inbound TCP and UDP traffic to UNCServer.exe. I have found no way to avoid this. Every time I run system update, I have to delete the two new rules by hand. Even if I create blocking rules to block inbound traffic to UNCServer.exe, system update will eliminate my rules (any rules regarding this exe) and create its own ones. Awesome!
Posts: 9,240
Registered: ‎12-26-2009
Location: Toronto, Canada

Re: What is UNCServer.exe?

Blargh. I was wondering what that is. Alt+Tabbing to it and hitting Alt+F4 makes it go away though.
W520: 2720QM, Q2000M at 1082/1376, 32GB RAM, 500GB + 750GB HDD, FHD screen & MB168B+
X61T: L7500, 4GB RAM, 500GB HDD, XGA screen, Ultrabase
W550s: 5600U, K620M at 1164/1281, 16GB RAM, 512GB SSD, 3K touchscreen
X200s: SL9400, 6GB RAM, 160GB HDD, WXGA+ screen
TPT1: 1839-23U
Blue Screen Again
Posts: 19
Registered: ‎05-21-2010
Location: Chicago, IL, USA
0 Kudos

Re: What is UNCServer.exe?



Really annoying to have it take up a slot in the task list when ALT+Tabbing

Token Ring
Posts: 34
Registered: ‎05-29-2013
Location: Switzerland
0 Kudos

Re: What is UNCServer.exe?

2 years later and this is still not corrected??!!!

X320T running Windows 8 Pro x64