7-Zip

ApplicationIgor Pavlov

Also called 7zip, 7-zip, seven zip

Igor PavlovSystem

An archive tool. The window is 7zFM.exe. The command line is 7z.exe. One product, not seven software URLs.

What you need to know

7-Zip is one product. Version SKUs do not each get a wiki URL.

Igor Pavlov's 7-Zip packs zip, 7z, and many other formats. Download it from 7-zip.org. Ad-network "7zip pro" pages are the usual junk.

What is it?: An archive manager
Paid?: The official build is free
Same as WinRAR?: Different product

Feex says

If you need an unzipper, I would use the official 7-Zip and skip the toolbar bundle. High CPU during ultra compress is the setting, not a virus.

What is 7-Zip?

7-Zip is an archive manager. 7zFM.exe is the file manager. 7z.exe is the CLI. Context-menu extracts often call 7zG.exe.

If you have never used it

If you downloaded a .zip or .7z and Windows will not open it the way you want, 7-Zip is a small free extractor. Get it from 7-zip.org only. After install, right-click the archive and choose 7-Zip. It is not WinRAR, not a toolbar, and not a Windows update.

What is it used for?

Create and extract archives

Zip, 7z, tar, and many other containers from the 7-Zip File Manager.

7z and zip

7z is the native format. Zip is what most people email. Same program.

Command-line batch compress

7z.exe in scripts. High CPU on ultra is the compression setting, not malware.

Who is it for?

People who want a small official unzipper
Users who compress with LZMA2
Anyone who should ignore "7-Zip Pro" ads

Current status

Actively maintained by Igor Pavlov. Version numbers change. This article is the Windows desktop build, not a fork.

How old is it?

Igor Pavlov first released 7-Zip in 1999. It is an old, still-updated utility. The 7z format and LZMA came from this project. A "7-Zip Pro 2026" paid store listing is not the official build.

Versions

Major channels first. Exact build numbers are not all verified here.

Stable Windows x64

System requirements

Values follow the publisher's public guidance. Workload still changes the real need.

Minimum

Minimum system requirements
Operating system	Current Windows 10 or Windows 11, per the 7-Zip Windows build
RAM	Dictionary size during compress is the limit, not a listed game-like GPU

Resource profile

CPU demand: High on ultra LZMA2, by design
RAM demand: Follows dictionary size
Disk demand: Source plus archive

Installed processes

These executables belong to this product when it is installed.

Installed processes
7zFM.exe	File Manager
7z.exe	Command line
7zG.exe	GUI helper for some extracts

Startup components

7-Zip should not start with Windows. A Startup entry is unexpected.

File locations

Common 7-Zip locations
Typical install	C:\Program Files\7-Zip\

File formats

7zZIPTARmany others listed on 7-zip.org

Common problems

Defender scans the new archive

MsMpEng can wake after a large write. That is the scanner.

Fake download sites

The official domain is 7-zip.org.

Getting unstuck

Download only from 7-zip.org

Ad-network "7zip pro" pages bundle toolbars. The real installer is a small exe from Igor Pavlov's site.

Associate archives in 7-Zip options if double-click opens the wrong app

Tools > Options > System. That is a file association, not a Windows reinstall.

Expect Defender to scan a new large archive

MsMpEng can wake after you write a big 7z. That is the scanner.

Alternatives

Windows Explorer unzip covers simple zip. WinRAR is a different license. Pick them for format or habit, not a risk meter.

Official help and downloads

Start with the vendor. Random exe sites are not a support channel.

Official contacts
Official site / download	www.7-zip.org/ The only download we recommend
FAQ	www.7-zip.org/faq.html Formats and command line
Source / history	www.7-zip.org/history.txt Version history from the author
SourceForge project	sourceforge.net/projects/sevenzip/ Another official distribution path Pavlov documents

Related hardware

More RAM helps huge dictionaries. An HDD makes extract feel slower. That is the drive.

Technical details

Per-version file hashes and volume-license paths are not verified in this preview.

Sources and verification

Reviewed by Feex editorial. Last verified August 2026 Status: Feex Reviewed. How we research.

7-Zip · Official project
7-Zip license and FAQ · Tools and formats
Foxhole process map · First-party samples on Windows PCs. Not a lab benchmark.

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