How do I remove the original packaging from the fatmax

Question edited to fix spelling.

It is a Utility Knife, it has no software downloads. You posted to Computers and Internet? I'll move it to Cutting Tools.

https://www.google.com/search?q=stanley+10-778

6-5/8 in FATMAX® Retractable Utility Knife ' STANLEY

https://www.stanleytools.com > product > 10-778 > 6-5...
Designed with the user in mind, the 6-5/8 in. FATMAX® Retractable Utility Knife offers durability and strength in one compact package.


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I have the same utility blade with yours.

It only goes in one way, try to loosen the screw a little

HI!Kindly pull the button on the end of the knife and then after you remove that you can now put the blade of your knife.

at the handel end it will pull apartthen slide the whats left of the old blade and put new won in its place just do it slowly so you dont forget how it goes

some stanley knifes require stanley blades only, or make sure the clip blade is in is seated in the grove completely.

Some models has 2 screws on the knife case.unscrew them and you can access to the blade.

Please watch tthis video.
https://www.youtube.com/watch?v=TsKu2DGVu50

1. Make sure the side lock is unlocked.
2. Push the thumb tab all the way to the front of the blade handle.
3. Insert the blade in the opening, you may notice two notches on the top side of the blade.
4. Press the small blade release button as you slide the blade into the knife. You may have to jiggle up and down to get the two notches on the blade fully into the handle.

If properly inserted, the exposed area of the blade should look very close to an equilateral triangle.

make sure both notches of the blade are inside the handle. They notch into the thumb lever.

good luck

Are you using Stanley Blades or off brand? Hey, I use off brand but sometimes it does make a difference. Second, make sure the blade slider is clean. If you were cutting shingles, for instance, the tar gets in there and screws things up.. try WD-40 spray it liberally all over the blade slide and buttons. If that doesn't work and you purchased it at a Menards store, I can speak of experience they'll replace it no hassle.
I hope I helped