pcaui.exe - How to Fix? Download Now

Sometimes Windows system displays error messages regarding corrupted or missing pcaui.exe files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent pcaui.exe file can therefore effect in failed execution of the started process.

pcaui.exe file Program Compatibility Assistant User Interface. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of pcaui.exe related errors on your device. You can also download pcaui.exe file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista

User popularity

3.1 Scanning for malicious software
3.2 System and driver update
3.3 System File Checker tool
3.4 System recovery

4 Download pcaui.exe

4.1 List of pcaui.exe file versions

File info

General information
Filename	pcaui.exe
File extension	EXE
Description	Program Compatibility Assistant User Interface

Software
Program	Microsoft® Windows® Operating System
Author	Microsoft Corporation

Details
MIME type	application/octet-stream
File type	Executable application
System	Windows NT 32-bit
Copyrights	© Microsoft Corporation. All rights reserved.
Character set	Unicode
Language cod	English (U.S.)

Most common pcaui.exe file related problems

There are various types of errors related to pcaui.exe file. pcaui.exe file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to pcaui.exe file. If you encounter one listed below (or similar), please consider the following suggestions.

pcaui.exe is corrupted
pcaui.exe cannot be located
Runtime Error - pcaui.exe
pcaui.exe file error
pcaui.exe file cannot be loaded. Module was not found
cannot register pcaui.exe file:
pcaui.exe file could not be loaded
pcaui.exe file doesn't exist

pcaui.exe

Application could not be started because pcaui.exe file is missing. Reinstall the application to solve the problem.

Problems related to pcaui.exe can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing pcaui.exe file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

How to fix pcaui.exe errors in just few steps?

Remember, before taking any action related to system files perform a backup copy of your data!

pcaui.exe file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with pcaui.exe file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Installing relevant Microsoft Windows patches and updates may solve your problems related to pcaui.exe file. Use dedicated Windows tool to perform the update.

Go to the Windows "Start" menu
Type "Windows Update" in the search field
Choose the appropriate software program (name may vary depending on your system version)
Check if your system is up to date. If any unapplied updates are listed, install them immediately.
After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of pcaui.exe or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to pcaui.exe file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the pcaui.exe file with properly working version. To use the tool:

Go to the Windows "Start" menu
Type "cmd" in the search field
Locate "Command Prompt" result – don't run it yet:
Click the right mouse button and select "Run as Administrator" option
Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Another approach is to restore system to previous state, before the pcaui.exe file error occured. In order to restore your system, follow the instructions below

Go to the Windows "Start" menu
Type "System Restore" in the search field
Start the system restore tool – it's name may differ depending on version of the system
The application will guide you through the process – read the messages carefully
After the process has finished, restart your computer.

If all the above-mentioned methods failed and the pcaui.exe file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace pcaui.exe file

The last solution is to manually download and replace pcaui.exe file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded pcaui.exe file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of pcaui.exe file example directory paths.

Windows 10: C:\Windows\System32\
Windows 8.1: C:\Windows\System32\
Windows 8: 1: C:\Windows\System32\
Windows 7: C:\Windows\System32\
Windows 7: C:\Windows\System32\
Windows Vista: ---
Windows Vista: ---

If the steps did not solve your pcaui.exe file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename pcaui.exe

System Windows 10

File size 41984 bytes

Date 2017-03-18

Download

File details
	MD5	1be54a9219c2609c1ee07f8e741697db
	SHA1	b9e72e7eb2f0735dba34658cc33c9c7ca058d58f
	SHA256	ade8da5799f4d45e6e0dd94fe654aeb00a039715c71b73639a629d34a7afff0a
	CRC32	0983545f
	Example file location	C:\Windows\System32\

Filename pcaui.exe

System Windows 8.1

File size 17408 bytes

Date 2014-11-21

Download

File details
	MD5	eaf09472973f95f9accf10460fd40f7b
	SHA1	fe0e1dc807324b66ca9dd973ac2b7ccad7f72d6f
	SHA256	516ef56be418e630cc3e16cbe1932d0a6d2e5a402546a723780a0282d7ca60f0
	CRC32	6ffd9060
	Example file location	C:\Windows\System32\

Filename pcaui.exe

System Windows 8

File size 16896 bytes

Date 2012-07-26

Download

File details
	MD5	b0fd434d3200d7503fcf4937d31444db
	SHA1	6d4c6ee20ab88c6f1faf9927c92eebb6417fea67
	SHA256	e59543b1340fb91f9818205e552dc6ae14d43948f79ffc5044c5f347c2019b38
	CRC32	e8198408
	Example file location	1: C:\Windows\System32\

Filename pcaui.exe

System Windows 7

File size 18432 bytes

Date 2009-07-14

Download

File details
	MD5	05b06af183c043d7a6172468b65d869e
	SHA1	abc73d80b7bebf95ab595a391c417771313d6c96
	SHA256	f39f91c11d834642df87778b7a7d2d58e411eb1310ee5bb330a6952ae2493e45
	CRC32	82eeaeb1
	Example file location	C:\Windows\System32\

Filename pcaui.exe

System Windows 7

File size 15872 bytes

Date -0001-11-30

Download

File details
	MD5	a30c8918d376072f51c8bd99a9c30328
	SHA1	29a389953974cbd29ab7a31ee18810dbd6f74f8f
	SHA256	7e5ad82b77b24cdaabd5b01d7eb9874b6e1c0b57f6ff9bf79bde0c705716eb5d
	CRC32	f4753e62
	Example file location	C:\Windows\System32\

Filename pcaui.exe

System Windows Vista

File size 14336 bytes

Date -0001-11-30

Download

File details
	MD5	61670f1fa16625fb7bd5cb1927816edf
	SHA1	83d9ca667cb5e38359de83596187d16318e604cd
	SHA256	42216dc4d66d760100ab05aec6f38e49434a3795754b0d70c36f8e44b91b7e0f
	CRC32	3af63cc4
	Example file location	---

Filename pcaui.exe

System Windows Vista

File size 16384 bytes

Date 2006-11-02

Download

File details
	MD5	8d3b416010e58b9d71cd2ef17e9977f9
	SHA1	79c58ca5aba069d3f0978879e95426d4b12ff470
	SHA256	595f1d0d57b05eb9b3b4a599a3e6afd1f2e3a934c1bd3a5966f4a2a59bb9aa63
	CRC32	17fa807c
	Example file location	---