Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: What are These Windows Patch Files?

24 Feb 2017   #1

Windows 7 Pro SP1
What are These Windows Patch Files?

I was scanning my windows drive to see if I could get rid of unused files and I came across a very large folder (around 11gb) called c:/windows/installer and it contains many subfolders with around 3,000 files total. They are Windows Installer Package or Windows Installer Patch types. Are they legit? Can I delete them?

My System SpecsSystem Spec
24 Feb 2017   #2

W7 home premium 32bit/W7HP 64bit/w10 tp insider ring

Hi Bruce,
no such file on my system.

Whats the complete path.
Largest file on your comp should be
c > windows > winsxs

mines 8GB.

My System SpecsSystem Spec
25 Feb 2017   #3

Windows 7 Pro SP1

The complete path according to CCleaner and searching windows explorer is C:\Windows\Installer\. This folder contains "windows installer package" and "windows installer patch" types of files with seemingly random names. The size of the folder is just under 12gb.

I don't know if these are leftover from my windows install or windows updates and if I should get rid of them.
My System SpecsSystem Spec

25 Feb 2017   #4

Microsoft Windows 7 Home Premium 64-bit 7601 Multiprocessor Free Service Pack 1

Read through this thread:

patch cleaner / installer folder

I ran the utility mentioned and it only found one file that could safely be removed.

PatchCleaner - safely clean your windows installer directory | homedev - software development out of the box
My System SpecsSystem Spec
25 Feb 2017   #5

Windows 7 Pro SP1

Ok, I read through that and decided to try it. The patch cleaner found 5gb in that folder that was orphaned, and I moved them to an external drive just in case. So it did free up some space!
My System SpecsSystem Spec

 What are These Windows Patch Files?

Thread Tools

Similar help and support threads
Thread Forum
BSOD while playing FFXIV patch 3.05 (Dump files included)
Hello SevenForums I've had some issues with BSODs in the past but they would be infrequent enough to not bother me. When I say infrequent I mean 0-2 times a week at max. I currently play FFXIV regularly on my computer and have been playing it fine up till now. Ever since a patch...
BSOD Help and Support
Office 2010 sp2 patch should be in Dec Patch tuesday
as per this website Susan Bradley states I got word back as follows: Outlook 2010 Calendar Folder property is empty - Microsoft Community As of now, the product group has consolidated similar cases and currently working on the fix for the Event 27 issue, which is planned for the...
Microsoft Office
Help Wanted: Cannot Patch Windows 7 Theme Files
I have a very strange problem that I have googled and reworded and googled some more, but to no avail. The only thing I can think of now is to ask for help from others. Now, I'm no novice to computers, and I'm certainly no novice to researching a problem, but sometimes the solution just isn't out...
Themes and Styles
Visual Styles: How to Manually Patch .DLL Files?
Hello, I love desktop customization and I want to fully customize my desktop. I've been using the UxStyle Core Beta software which doesn't patch .dll files but enables custom themes. However, buttons and some elements of Explorer windows don't change, which doesn't provide me with the full...
Themes and Styles
Microsoft issues first Windows 7 beta patch But it skips SMB patch not critical
Microsoft issues first Windows 7 beta patch But it skips offering SMB patch because it's not critical Microsoft Corp. today issued its first patch for the just-released Windows 7 beta, but passed on plugging a hole in an important...

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 21:42.
Twitter Facebook Google+