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: 7zip?

21 Jul 2014   #1

W7 Pro 32bit


When I rt click on any folder, see 2 options of it i.e 7ip and CRC SHA.......whats it can removed...or it is needed?


My System SpecsSystem Spec
21 Jul 2014   #2

64-bit Windows 10 Pro

Hello Alexey,

Open 7-Zip using Run as administrator, click on Tools (menu bar) and Options. Click on the 7-Zip tab, uncheck the top two items like below, and click on OK. This will remove these context menu items. :)


My System SpecsSystem Spec
21 Jul 2014   #3

W7 Pro 32bit

Thanks a lot Shawn you are one genius member.

Best Regards!
My System SpecsSystem Spec

16 Jul 2015   #4

Windows XP 32 bit

thanks , found this useful , i dont even remember why i installed 7zip if i already have winrar
My System SpecsSystem Spec
18 Aug 2015   #5

Win 7 Home Premium 64 bit
What is CRC-SHA?

Thanks, this is very helpful. I removed the menu items, but I wondered what CRC-SHA is anyway as a part of 7-Zip
My System SpecsSystem Spec
09 Sep 2015   #6

Windows 10 64-bit

Quote   Quote: Originally Posted by KeithAusTX View Post
Thanks, this is very helpful. I removed the menu items, but I wondered what CRC-SHA is anyway as a part of 7-Zip
The CRC-SHA context menu has a few different sub-items which allow you to calculate the CRC checksum or SHA hash of a file.

CRC is a relatively cheap error-checking code, whereas SHA is a cryptographically secure one-way hash.

Both can be used to verify the integrity of a file acquired over error-prone (CRC) or untrusted (SHA) communication channels such as the Internet.

For example, Notepad++ is a tool I have downloaded many times. The developers calculate the SHA hash of the file and post it alongside the download. This allows anyone who has a file they think is the Notepad++ installer to cryptographically *guarantee* that it's an official copy.

You can find the SHA-1 hash for the latest release of Notepad++ (as of writing) here:

If you download that file then use 7-zip's CRC SHA -> SHA-1 menu item, 7-zip will calculate the hash of the file on-the-fly and you can manually verify that it's equal to what's posted online.
My System SpecsSystem Spec
09 Sep 2015   #7

Win 7 Home Premium 64 bit

That's helpful, thanks :)
My System SpecsSystem Spec
01 Jan 2016   #8

Win 7 Pro 64 SP1

Having the same 'issue,' I just wanted to say thanks for the fix!!
My System SpecsSystem Spec
28 Oct 2019   #9

XP Pro (x86) | 7 HP (x86) & (x64) | 7 Pro (x64)

In my seniors moment I could not find where to start ...
Start (Menu) -> Programs -> 7-Zip -> 7-Zip File Manager << RUN AS ADMIN *must*
... then pick up where Brink started

I finally got there
A stroke 7 weeks ago (second one in 5 years) has not only lost me an eye but a few brain cells to boot
Still breathing and giving cheek
My System SpecsSystem Spec


Thread Tools

Similar help and support threads
Thread Forum
WinZip or 7Zip
What's generally used amongst the forum? Had 7Zip on the CD for my motherboard so I installed that.
7Zip Question
Hi Folks, 7Zip is installed on 2 computers, Win7 Home Premium (My PC) & Win7 Professional. Both have Windows Live Mail 2012 installed and set as 'Default'. If I right click a folder on my pc, select 'Compress and Email' it works perfectly. On the other pc, I get a pop up saying there is no...
7zip vs. WinRAR what is better ???
Hello Guys What do you think is better 7Zip or WinRAR?? Please let me know what you Prefer Thanks
7zip with recovery?
Hi, usually i have used WinRar to pack my Data. There I can also add some recovery data to to get aa more robust file. Now I tried 7zip and im also very happy with it. But I'm missing the add recovery data featue. Is there one? Don't find it on the GUI, but maybe with the parameters.
Fix 7zip Archives?
Hey all :) Is there any program that can repair CRC errors in 7zip archives?

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 05:56.
Twitter Facebook