Wont reset some programs will work but some wont when i press 2nd mem the memory doesnt show up so i cant reset it an when i graphed something i need to change the zoom to zoom fit and since this everytime i try to use the graph it says err. wondow frame but it has no goto it just says quit

Instructions
1
Enter the memory options by selecting "Mem." Press the "2nd" key followed by the "+" key. Select "Reset" from the memory choices. Use the arrow key to select and delete all memory.


2
After choosing to delete all memory, select "Reset." After this reset, your screen should show "Mem Cleared." Once you have reached this screen, press "Enter." If you installed programs or applications, you may need to remove them manually. Once again, enter the "Mem" command.
3
Press "2" to select Memory Management. If you are deleting programs, input that option from the subsequent menu choices. If you need to remove applications, input that choice and press "Enter. Select the application or program from the list displayed. Press "Del" to request the deletion. Choose "Yes" to confirm your choice.


4
Repeat this process to delete remaining programs manually. After completing this, exit the memory menu and press the "Apps" button. Make sure no applications remain. Additionally, press the "Prgm" button, and check that all programs have been removed

Follow this steps to resolve this problem:

1. Press ON to turn calcilator on

2. Press 2nd and then press + key button. TI- 81 displays RESET menu

3. Press 2 to select the RESET, the second item in the RESET menu. The display shows the message Mem cleared. Press CLEAR to clear the screen

If you cannot see anything on the screen, you may need to adjust the graphing TI- 81 calculator contrast:

-To darken the screen, press and release 2nd key, and then press and hold up-arrow key until the display is sufficiently dark

- To lighten the screen, press and release 2nd key, and then press and hold down-arrow key until the display is sufficiently light

1. Press [2nd] [ ] to access the (MEM)ory management tool.
2. Press [7:Reset]
3. Press [1:All RAM]
4. Press [2:Reset]

Beware that Ressetting RAM erases all data and programs from RAM. Archived applications and programs are not deleted.

You can also reset the Archives

1. Press [2nd] [ ] to access the (MEM)ory management tool.
2. Press [7:Reset]
3. Press right arrow to highlight [ARCHIVE]
   

• [1:Vars]
• [2:Apps]
• [BOTH]
  

You can press the WINDOW key (very top row, 2nd from the left) and change the parameters as desired.

You can reset everything to factory defaults by pressing 2ND MEM 7 2.

Hello,
Reset the memory of the calculator and draw your graphs again.
To reset memory
Press [2nd][MEM][3:Reset][2:Reset][ENTER].
Since this procedure resets the screen contrast to default settings, you may have to adjust it.
To adjust contrast
Press [2nd] key and release it.
Press and hold [UpArrow] to darken or [DownArrow] to lighten contrast.

Hope it helps.

Hello,
Press [2nd][MEM][7:Reset][1:All RAM][2:Reset][ENTER].
Resetting RAM will clear old data stored in list, matrices, graphs, stat graphs.
If you have precious data, you may choose to
press [2nd][MEM][1:ALL] then you scroll down the list and erase individual items. When the Fat Right Arrow points to an item, you press [DEL] to delete it. Be careful not to delete the APPS (have asterisks to show they are archived).
Hope it helps.

From the TI knowledge base and FAQ

How do I correct ERR: MEMORY on a TI-83 family or TI-84 Plus family graphing calculator?

An ERR: MEMORY is given when there is not enough memory to perform the instruction or function. To increase available memory by deleting the contents of any variable (real or complex number, list, matrix, Y= variable, program, Apps, AppVars, picture, graph database, or string), follow these steps. • Press [2nd] [MEM] to display the MEMORY menu.
• Press 2: Mem Mgmt/Del.
• Select a variable or data that needs to be deleted and press [ENTER].
• Use the arrow keys to move the cursor next to the item, and then press [DEL]. The variable or data should now be deleted from the memory.
When deleting programs or Apps, a message asking for confirmation will appear. Select 2:Yes to continue. To leave any variable screen without deleting anything, press [2nd] [MODE].
Notes:
With the exemption of programs and Apps, no warning will be given to verify the deletion.Some system variables, such as the last-answer variable Ans and the statistical variable RegEQ, cannot be deleted.

Hope it helps.

Hello,
Clear the old contents of variables .
Press [2nd][MEM][2:Mem Mngt/Del][6:Y-Vars][ENTER]. The graph functions that have been defined are listed on screen. Scroll to select the one you want to use and press [DEL].
There is amore radical way to clear the memory:
Press [2nd][MEM][7:Reset] [1:All RAM][2:Reset][ENTER].
Hope it helps.

Hello,
Reset the memory to defaults and you will not get the error.
[2nd][MEM][7:Reset][Defaults] [2:Reset] [ENTER]. Press [CLEAR] and them [Y=] to enter the function. No need to set Zoom. Defaults work fine for y1= 4X+3.
Press [GRAPH].
Hope it helps

Hello,
Reset the memory to defaults and you will not get the error.
[2nd][MEM][7:Reset][Defaults] [2:Reset] [ENTER]. Press [CLEAR] and them [Y=] to enter the function.
Press [GRAPH] when finished entering function.
Hope it helps