If you get the mentioned error, you may be stuck on that and cannot do anything else.
As such, so that keep your data safe, you should create adata backup.
Here we strongly recommend you try MiniTool ShadowMaker, a powerfulbackup software.
Why not have a try?
If yes, you’re free to proceed with the following fixes.
How to fix the Microsoft Store error 0xC0EA000A when downloading apps?
Here are some effective solutions for you.
Method 1. launch the Troubleshooter
Step 1: Press theWin + Xkeys together and selectSettingsfrom the menu.
Step 2: Scroll down to chooseUpdate & Securityand click theTroubleshoottab from the left pane.
Step 3: Find theAdditional troubleshooterslink and choose it.
Step 4: LocateWindows Store AppsunderFind and fix other problems, and then tap onRun the troubleshooter.
Getting Microsoft Store error code 0x80D06809 and cannot download or update any software?
Now it’s possible for you to get this problem resolved.
Method 2.
Reinstall Microsoft Store
Step 1: Copy and paste the commands below in order.
Reregister All Apps
Step 1: Copy and paste the command listed in turn and hit theEnterkey.
Also read:How to Fix the Windows Store Login Box Grayed Out Issue?
Method 3.
Clear Microsoft Store Cache
Step 1: Press theWin + Rkeys simultaneously to open theRuncommand.
Step 2: Inputwsreset.exeand clickOK.
After that, find out if the error persists.
Method 4.
Check System Files
Step 1: Typecmdin the search box and right-nudge the result to selectRun as administrator.
Step 2: Input thesfc /scannowcommand and pressEnterto scan if there are any corrupted system files.
Method 5.
Using Media Creation Tool
Step 1: Download Windows 10/11 Media Creation Tool from Microsoft.
Step 2: Double-grab the installer.
When theUACwindow pops up, clickAcceptto agree to the terms.
Step 3: SelectUpgrade this PC now, and clickNext, then follow the on-screen introductions to finish.
Hopefully, they can help you fix Microsoft Store error 0x80045c3c in Windows 10/11.
