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FIX: CCleaner error when opening files for writing

3 min. read

Updated onOctober 4, 2023

updated onOctober 4, 2023

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Key notes

When you want to clean up oroptimize your computerfor better performance, there are many tools available that can help you do the job, and well at that.

One of these tools is CCleaner, arguably one of the world’s most popular ones thatclear out temporary filesclean your Registry anderase browser historyamong many other tasks.

CCleaneris also compatible with Windows operating system, and has a great user interface, support for Chrome and Internet Explorer, plus added support for programs like BitTorrent, AVG antivirus, Audacity and others.

In short, it is the ultimate tool for cleaning your system, but you still have to make a full system backup and create a new system restore point prior to using it.

Like any other software,CCleaneralso has troubleshooting issues that bring up errors in its installation and usage, like theCCleanererror opening file for writing.

This error is associated with installation problems when using the tool if you’re trying to install it without being logged in as an administrator.

Check out the known solutions to resolve theCCleanererror opening file for writing.

How do I fix CCleaner error opening file for writing

How do I fix CCleaner error opening file for writing

1. Retry running the installer

If you run the installer, you may get a dialog box when a previous version ofCCleaneris running. First, make sure to download the right installer from the official webpage. Then proceed with the process and in case the message shows again, wait for a few seconds and click Retry.

If this doesn’t get it back up and running again, try the next solution.

⇒Get CCleaner

2. Log in as an administrator

As mentioned earlier, theCCleanererror opening file for writing may be caused when you try to runCCleanerwithout being logged in as an admin. In this case, you can log in as admin and run it, or contact your system admin for help with this.

If you were able to log in as an administrator and this worked, you can carry on usingCCleaneron your system, if not, try the next solution.

3. Use CCleaner Portable

CCleaner Portableis the perfect tool when you need to clean your system on the go or want to carry it elsewhere to do a cleanup on another computer system. This version lets you carry it in your USB flash drive and use it anywhere, though it may have limited functionality if you’re not using an administrator account.  Once installed, you can runCCleanerwithout logging in as an admin, but it may not clean certain files and folders.

Did this help resolve theCCleanererror opening file for writing? Share your comment in the section below.

⇒Get CCleaner Portable

More about the topics:ccleaner,Optimization guides & tools

Milan Stanojevic

Windows Toubleshooting Expert

Milan has been enthusiastic about technology ever since his childhood days, and this led him to take interest in all PC-related technologies. He’s a PC enthusiast and he spends most of his time learning about computers and technology.

Before joining WindowsReport, he worked as a front-end web developer. Now, he’s one of the Troubleshooting experts in our worldwide team, specializing in Windows errors & software issues.

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Milan Stanojevic

Windows Toubleshooting Expert

Before joining WindowsReport, he worked as a front-end web developer. Now, he’s specialized in Windows errors & software issues.