| Source | Target | | Universal Naming Convention (UNC) | Universal Naming Convention |
| Universal Naming Convention-pad | Universal Naming Convention path |
| Universal Object Control | Universal Object Control |
| Universal Receiver Transmitter | Universal Receiver Transmitter |
| universal serial bus | universal serial bus |
| Universally Unique Identifier | universally unique identifier |
| universele app | universal app |
| universele beveiligingsgroep die e-mail gebruikt | mail-enabled universal security group |
| universele distributiegroep die e-mail gebruikt | mail-enabled universal distribution group |
| universele groep | universal group |
| Universele modus | Global mode |
| UNIX | UNIX |
| UNIX-bestandsmachtigingen | UNIX file permissions |
| UNIX-to-UNIX Copy Protocol | UNIX-to-UNIX CoPy |
| UNN | UNN |
| unswizzle | unswizzle |
| Unterhaltungssoftware Selbstkontrolle | Unterhaltungssoftware Selbstkontrolle |
| UOC | UOC |
| upcast | upcast |
| update | update |
| update met hoge prioriteit | high priority update |
| Update voor Windows 8.1 | Windows 8.1 Update |
| Update voor Windows 8.1 Enterprise | Windows 8.1 Enterprise Update |
| Update voor Windows 8.1 Pro | Windows 8.1 Pro Update |
| Update voor Windows 8.1 Pro met Media Center | Windows 8.1 Pro with Media Center Update |
| Update voor Windows 8.1 Single Language | Windows 8.1 Single Language Update |
| Update voor Windows RT 8.1 | Windows RT 8.1 Update |
| updateaanvraag | update request |
| updategroep | update group |
| updatelijst | update list |
| updatepakket | update rollup |
| updaterun | Updating Run |
| updates uit een sociaal netwerk | social update |
| Updates van sociale netwerken | Social updates |
| upgrade met databasekoppeling | database attach upgrade |
| upgrade met onderhoud | upgrade with maintenance |
| Upgrade Pre-Scan tool | Upgrade Pre-Scan tool |
| upgrade uitvoeren | upgrade |
| upgradedomein | upgrade domain |
| UPHClean | UPHClean |
| uplink | uplink |
| uplink-id | uplink ID |
| upload | upload |
| Upload Center | Upload Center |
| uploaden | upload |
| Uploader voor meerdere afbeeldingen | Multiple Image Uploader |
| UPN | UPN |
| UPN-achtervoegsel | user principal name suffix |
| UPnP-technologie | UPnP technology |
| UPS | UPS |
| upstream | upstream |
| UPS-zone | UPS zone |
| UPWARDS ANCORA | UPWARDS ANCORA |
| Uren IP-adres | IP Address Hours |
| URI | Uniform Resource Identifier |
| URI | URI |
| URL | URL |
| URL voor aanbieding | Offer URL |
| URL voor thuisdomein | home realm URL |
| URL-koppositie | URL smashing |
