Problems updating to thingworks studio 8

Did a update from previous version, during update stuck @ 38%

Restart computer

From programs an features, uninstall thingworks.

Restart computer

Remove folder from documents.

Download setup & run, Thingworks studio 8, error occurred, check log.

log:

[06/13/2017 14:42:46] Studio Version 8.0.0 (8.0.0.1557)

[06/13/2017 14:42:46] Status Message: Version 8.0.0 (8.0.0.1557)

[06/13/2017 14:42:46] Checking for updates from https://studio-download.vuforia.io/downloads/ThingworxMobileBuilderApp.application

[06/13/2017 14:42:46] Starting node.exe

[06/13/2017 14:42:47] module.js:471

[06/13/2017 14:42:47]     throw err;

[06/13/2017 14:42:47]     ^

[06/13/2017 14:42:47]

[06/13/2017 14:42:47] Error: Cannot find module 'universalify'

[06/13/2017 14:42:47]     at Function.Module._resolveFilename (module.js:469:15)

[06/13/2017 14:42:47]     at Function.Module._load (module.js:417:25)

[06/13/2017 14:42:47]     at Module.require (module.js:497:17)

[06/13/2017 14:42:47]     at require (internal/module.js:20:19)

[06/13/2017 14:42:47]     at Object.<anonymous> (C:\Users\kae\AppData\Roaming\ThingworxStudio\studio-download.vuforia.io\node_modules\fs-extra\lib\fs\index.js:3:34)

[06/13/2017 14:42:47]     at Module._compile (module.js:570:32)

[06/13/2017 14:42:47]     at Object.Module._extensions..js (module.js:579:10)

[06/13/2017 14:42:47]     at Module.load (module.js:487:32)

[06/13/2017 14:42:47]     at tryModuleLoad (module.js:446:12)

[06/13/2017 14:42:47]     at Function.Module._load (module.js:438:3)

Thingworx studio, version 8 not in programs & features to uninstall/install.

Please help.