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You can force restart your device to have a try. If you are sure that the power supply is normal but the MacBook black screen of death issue persists, there may be some temporary issues on your Mac. Method 2: Force Restart Your Mac Computer If you are using a MacBook Air or MacBook Pro, you can charge your device and then press the Power button to see whether it can boot normally. You can check the power outlet to see whether the power supply is normal. When your Mac computer goes to a black screen, the first thing you need to do is to check the power for your device. Restore your Mac from a Time Machine backup.Use Disk Utility to repair your startup disk.You can also try searching your inbox for a confirmation email from you are having trouble accessing your product key, contact Microsoft Support. To get your program code, go to the Home Use Program, select your country/region, enter your work email address, and click Don’t Know Your Program Code? On the next page, click Verify Email. If you’re in the Home Use Program, you’ll need a program code, not a product key. If you are having trouble accessing your product key, contact Microsoft Support. If you misplaced your key before you redeemed it, you may need to purchase a replacement.įind your product key by logging into the MSDN subscriber download site. The 25 digit product key is on a yellow sticker on the inside of the DVD case. If you used the PIN, your product key may have been stored on your account page. If you have not used it, go to and enter your PIN to get your product key. If Office came with a box or card, look on the card or packaging. I bought Office without a DVD at a physical store. Or search your inbox for an email from your Order History page for information on how to contact Support. Go to your Account page and click Digital Content. If you still can’t find your product key, contact the seller to ask for the link or receipt to be resent. Try logging into the site where you purchased Office to check your order details. If you didn’t get a receipt, check your junk mail folder.

The product key should be in your email receipt. I downloaded Office from an online store. Tip: If your copy of Office came with a PIN instead of a product key, go to and enter your PIN to get your product key.