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  1.    3 Weeks Ago #1
    Join Date : Oct 2015
    Posts : 17
    Windows 10

    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
      My ComputerSystem Spec
  2.    3 Weeks Ago #2
    Join Date : Aug 2015
    Posts : 237
    win 10

    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?
      My ComputerSystem Spec
  3.    3 Weeks Ago #3
    Join Date : Oct 2015
    Posts : 17
    Windows 10
    Thread Starter

    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; 3 Weeks Ago at 07:13. Reason: more information
      My ComputerSystem Spec
  4.    3 Weeks Ago #4
    Join Date : Feb 2016
    Maribor, Slovenia
    Posts : 8,963
    Windows 10 (Pro and Insider Pro)

    Quote Originally Posted by Pjollop View Post
    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
      My ComputerSystem Spec
  5.    3 Weeks Ago #5
    Join Date : Dec 2015
    Posts : 5,991
    Windows10

    Good advice
      My ComputerSystem Spec
  6.    3 Weeks Ago #6
    Join Date : Oct 2015
    Posts : 17
    Windows 10
    Thread Starter

    Am currently running 16.04
    Kid 2018 vulnerability scan flagged this up
    Last edited by Pjollop; 3 Weeks Ago at 07:16. Reason: more info
      My ComputerSystem Spec
  7.    3 Weeks Ago #7
    Join Date : Feb 2016
    Maribor, Slovenia
    Posts : 8,963
    Windows 10 (Pro and Insider Pro)

    Quote Originally Posted by Pjollop View Post
    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.
      My ComputerSystem Spec
  8.    3 Weeks Ago #8
    Join Date : Oct 2014
    Trnava
    Posts : 2,866
    Windows 10.4 Home 1709 x64

    Quote Originally Posted by Pjollop View Post
    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.
      My ComputerSystem Spec
  9.    3 Weeks Ago #9
    Join Date : Aug 2016
    S/E England
    Posts : 4,520
    10 Home x64 (1709) (10 Pro on 2nd pc)

    To answer @Pjollop's question...
    Quote Originally Posted by Pjollop View Post
    ...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.
      My ComputersSystem Spec
  10.    3 Weeks Ago #10
    Join Date : Oct 2015
    Posts : 17
    Windows 10
    Thread Starter

    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.)
      My ComputerSystem Spec

 
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