Excel Not Responding, Freezing or Crashing? Safe Mode, Add-ins and Hardware Acceleration

Excel locks up with a spinning cursor, says “Microsoft Excel is not responding,” or just closes itself mid-edit. Reopening works for a minute, then it freezes again.

Why: Nine times out of ten it’s not Excel itself — it’s something loading with Excel. The usual suspects are a misbehaving add-in (COM add-ins from PDF tools, accounting software, or analytics plugins), a graphics driver that doesn’t play well with Office’s hardware acceleration, or an out-of-date Office build. Safe mode skips add-ins and startup items, so it’s the fastest way to find out which.

Fix 1: Start Excel in safe mode to isolate the cause

Safe mode launches Excel without add-ins, custom toolbars, or the XLSTART folder. If Excel is stable here, you’ve confirmed the problem is an add-in or startup item — not your file or Excel itself.

1. Hold Ctrl and double-click the Excel icon (or hold Ctrl while opening a workbook). Keep holding until a prompt asks “Do you want to start Excel in Safe Mode?” — click Yes.
2. Or press Windows key + R, type excel /safe, and press Enter. (Note the space before the slash.)

The title bar will read “Microsoft Excel (Safe Mode).” Work for a few minutes. If it no longer freezes, move to Fix 2.

Fix 2: Disable COM add-ins one at a time

This is the most common cure. With Excel open (normal mode):

1. Go to File > Options > Add-ins.
2. At the bottom, in the Manage box, choose COM Add-ins and click Go.
3. Clear every checkbox in the list, then click OK.
4. Close and reopen Excel normally and use it for a while.

If the crashing stops, re-enable the add-ins one at a time (repeat the steps, tick one box, restart, test). When the freeze returns, the last one you enabled is the culprit — leave it off and contact that add-in’s maker for an update. Worked example: a user whose Excel froze on every save found re-enabling a “Save to PDF” toolbar add-in brought the hang back instantly; removing it fixed it for good.

Fix 3: Turn off hardware graphics acceleration

If safe mode is also unstable, add-ins aren’t the issue — suspect the graphics driver. Microsoft has documented specific Intel graphics driver versions (for example 26.20.100.6951 through .7063) with a heap-corruption bug that makes Office apps stop responding. The clean fix is updating the Intel driver to 26.20.100.7262 or later, but you can work around it immediately inside Excel:

1. Go to File > Options > Advanced.
2. Scroll to the Display section and tick Disable hardware graphics acceleration.
3. Click OK and restart Excel.

Once you’ve updated your graphics driver, come back and clear that checkbox so Excel runs at full speed again.

Fix 4: Install updates and repair Office

If freezes persist, get current and repair the install:

• Update Office: File > Account > Update Options > Update Now.
• Update Windows: Settings > Windows Update > Check for updates (this also delivers graphics driver updates).
• Repair Office: Close Excel, open Settings > Apps > Installed apps, find your Microsoft 365/Office entry, choose Modify > Quick Repair (run Online Repair if Quick Repair doesn’t help).

FAQ

Does /safe fix anything permanently? No — it’s a diagnostic mode. It tells you whether an add-in is to blame so you can disable the right one in normal mode.

My add-ins list is empty but Excel still crashes. Then check the Excel Add-ins entry in the same Manage box, and try Fix 3 (hardware acceleration) and Fix 4 (repair). A specific workbook that always crashes may be corrupt — open it with File > Open > Open and Repair.

Is it safe to leave hardware acceleration disabled? Yes, but you may notice slightly slower scrolling and animations. Re-enable it after updating your graphics driver.

Sources: Microsoft Support — Excel not responding, hangs, freezes or stops working · Microsoft Learn — Some Office applications are not responding