Zip files in Win 10

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  1. Posts : 17
    Windows 10
       #1

    Zip files in Win 10


    Does win 10 have it's own zip file extractor programme.
    For some reason I seem to have aquired 7-zip which i do not remember downloading (and which my Kaspersky internet security 2018 doesn't like due to security problems)

    So, am I safe to uninstall 7-zip knowing that there is an unzipper contained within Win 10 (latest version)
    Thanks
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  2. Posts : 449
    win 10
       #2

    Win 10 does support zip files natively I believe
    However, 7-zip is a legitimate util and is often used in lieu of Winzip as it's free
    I use 7-zip and KTS without any issues
    What is KIS saying about 7-zip?
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  3. Posts : 17
    Windows 10
    Thread Starter
       #3

    This is flagged as "Critical"

    A heap-based-overflow was found in 7-Zip before 16.00. By exploiting this vulnerability malicious users can execute arbitrary code. This vulnerability can be exploited remotely via a specially designed HFS+ image.


    Technical details
    Vulnerability occurs in method NArchive::NHfs::CHandler::ExtractZlibFile.

    I'm running 16.04 so am up to date.
    Last edited by Pjollop; 01 Nov 2017 at 08:13. Reason: more information
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  4. AndreTen's Avatar
    Posts : 25,535
    Windows 10 (Pro and Insider Pro)
       #4

    Pjollop said:
    This is flagged as "Critical"

    A heap-based-overflow was found in 7-Zip before 16.00. By exploiting this vulnerability malicious users can execute arbitrary code. This vulnerability can be exploited remotely via a specially designed HFS+ image.


    Technical details
    Vulnerability occurs in method NArchive::NHfs::CHandler::ExtractZlibFile.
    Update your 7-zip to version 16.04. This was in version 16. Uninstall it, download new version (if needed) and install that
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  5. cereberus's Avatar
    Posts : 12,608
    Windows10
       #5

    Good advice
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  6. Posts : 17
    Windows 10
    Thread Starter
       #6

    Am currently running 16.04
    Kid 2018 vulnerability scan flagged this up
    Last edited by Pjollop; 01 Nov 2017 at 08:16. Reason: more info
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  7. AndreTen's Avatar
    Posts : 25,535
    Windows 10 (Pro and Insider Pro)
       #7

    Pjollop said:
    Am currently running 16.04
    Kid 2018 vulnerability scan flagged this up
    Could be some left overs of the older version. Uninstall it completely, I would suggest CCleaner or Revo - both free versions to clean all of it. Or check in Kaspersky, where and what version are problematic files.
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  8. TairikuOkami's Avatar
    Posts : 5,012
    Windows 11 Home
       #8

    Pjollop said:
    For some reason I seem to have aquired 7-zip which i do not remember downloading
    A lot of software contains its own 7-zip to unpack files, lookup the location of the outdated 7-zip.

    By the way, the latest version is 17.01, do not mind the beta tag, it does not mean anything.
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  9. Bree's Avatar
    Posts : 21,808
    10 Home x64 (21H2) (10 Pro on 2nd pc)
       #9

    To answer @Pjollop's question...
    Pjollop said:
    ...am I safe to uninstall 7-zip knowing that there is an unzipper contained within Win 10 (latest version)
    Yes - you don't need 7-Zip, Explorer can open or create .zip files itself.

    In File Explorer, a .zip file is shown with a 'folder' icon with a zip added. You can click on it to open and explore it as if it was an ordinary folder. Files can be copied and pasted to another (normal) folder to extract them, or use the 'Extract all' button.

    Unzip Files from Zipped Folder in Windows 10 Customization Tutorials

    To make a .zip, select the file(s) and/or folder(s) you want to add, right-click on them and select 'Send to... > Compressed (zipped) folder'.

    7-Zip can do so much more (such as password protection and many other compression formats) but for the basic Zip functions Windows has them built in.
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  10. Posts : 17
    Windows 10
    Thread Starter
       #10

    Thank you. None of the cleaners would properly uninstall 7-zip and the files that KIS 2018 was complaining about. In the end had to uninstall then grub about in the c:\Programme files(x86) folder to find and delete all 7-zip folders and files. There is still an InstallSheild information file coming up in the vulnerability scan which I can't find anywhere (even after a c disk file search) but I'm guessing that on it's own it won't represent a risk. I will only be unzipping downloaded programme folders so don't see the need for greater functions and in this hazardous climate of computer misuse feel that if a programme can't behave I'm better off without it !
    Thank you for all your help. (will mark this solved in a day or so.)
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