Forum Discussion
Microsoft Excel 365 HUGE Memory Leak (50 GB RAM)
ExcelClaro I'll start documenting specifics here whenever I observe this phenomenon. One other note for now is that I've had instances where RAM usage has spiked to 80GB-90GB before returning back to the normal range for the file I'm using (generally 200MB-500MB). In those cases, video begins updating normally, and I can work with the file again -- even though subsequent memory spikes seem to happen more frequently. In other instances, the RAM usage goes past 90GB, but I've always closed Excel before reaching my system limit.
Same here...
My PC: AMD 5900X + 64GB + RTX3080Ti + 3440x1440x60Hz + Windows 10 Pro + Excel 365
If Excel works normally, it consumes 150-500MB of RAM. When it starts to lag, it consumes 40+GB. Usually the image freezes for a while and the only solution is to save the sheet and reopen Excel.
For me, the problem has been present at least from June 2022... I tried to solve the problem with a clean installation of Windows 10, then Windows 11 (no comment), drivers update or outdate... then I screamed at my PC and threatened him with a hammer... 😉
I noticed that there is no problem if:
- using Excel 2010
- using Excel 365 with "Hardware Acceleration" disabled
(this option has been removed some time ago - big "thanks" to Microsoft)
tomoam2 My Excel lockup is also on an AMD/nVidia laptop. Lenovo Legion 5 Pro, AMD 5800H + nVidia 3070.
Clifton_Cline Hi again (everybody),
Did you try this one:
https://answers.microsoft.com/en-us/msoffice/forum/all/excel-hardware-aceleration/35721975-ab66-4534-9384-f1a873503b31
"Assign application to specific GPU
[...]To make Outlook to use a specific graphics card (i.e. use a basic driver so it disables hardware acceleration).
Open Graphics Settings
Windows 11
Start> Settings> System> Display> (section) Related Settings> GraphicsWindows 10
Start> Settings> System> Display> (section) Multiple displays> Graphics settings
Select: Desktop app
Use the Browse button to add Outlook.exe (you can use Process Explorer to find the path if it is running or right click on the shortcut and go to properties.)
After you’ve added Outlook, select it from the list and press the Options button to select your GPU.
Use the Power Saving GPU: Microsoft Basic Render Driver to turn off hardware acceleration like you used to be able to do an easier way."
Excel 365 works much worse than the 2010 version, but maybe this method will speed it up until the patch is released?
I don't understand why Microsoft can't just restore the Disable Hardware Acceleration option?!
- Yes the registry is set to 1.
I had set the card to High Performance for the Excel app. It crashed again this morning so I'll try the Power Saving mode now.
- Thanks for your reply! It was fun to read. 😁 I can feel your frustration. 😕
Yes, the very same symptoms are there: specially the 4K monitor. I think that's the main variable suspect.
Hope Microsoft gets it fixed ASAP. 🙏🏻ExcelClaro Mine spikes memory leaks, then my CPU usage goes to 79% of just System Interrupts and locks up until I can get enough CPU free to kill the process, then reboot. Only Excel seems to cause this. Seriously needs a fix.
