---
title: UltraTax CS Crashing or Not Opening – Complete Fix Guide
description: "UltraTax CS by Thomson Reuters crashes unexpectedly, does not open, or closes immediately after launch. Symptoms include: - Application not opening - Blank screen - Unexpected shutdown - Crash during use ## Causes for UltraTax (UT) App Crashing Furthermore, common…"
url: "https://www.oneupnetworks.com/knowledgebase/performance-speed-stability/ultratax-cs-crashing-fix/"
updated: "2026-02-15"
category: "Performance, Speed & Stability Issues"
tags:
  - Thomson Reuters
---

# UltraTax CS Crashing or Not Opening – Complete Fix Guide

UltraTax CS by Thomson Reuters crashes unexpectedly, does not open, or closes immediately after launch. Symptoms include:

- Application not opening
- Blank screen
- Unexpected shutdown
- Crash during use

## Causes for UltraTax (UT) App Crashing

Furthermore, common causes include:

- Missing Windows components
- Corrupted installation
- Antivirus interference
- Insufficient permissions
- Finally system updates

## Resolution

### Step 1: Run UltraTax as Administrator

- Right-click UltraTax CS icon on Thomson Reuters App
- Click Run as Administrator

### Step 2: Restart Computer

- Restart your system completely.

Please note to save all your open documents before restarting to avoid any data loss.

### Step 3: Install Required Windows Components

Ensure installed:

- Microsoft .NET Framework 4.8
- Microsoft Visual C++ Redistributable

### Step 4: Temporarily Disable Antivirus

- Disable antivirus and test UltraTax.
- If resolved, add exclusions.

### Step 5: Repair UltraTax Installation

- Go to:
- Control Panel → Programs → UltraTax CS
- Click Repair

### Last Step: Reinstall UltraTax (If Needed)

- Uninstall UltraTax
- Restart computer
- Reinstall latest version

### How to move forward by preventing future downtime issues?

- Keep Windows updated
- Maintain antivirus exclusions
- Avoid improper shutdowns

---

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