0x800F0906 in DISM: Windows cannot download the repair source files
0x800F0906 means DISM could not reach Windows Update for repair files. Point /RestoreHealth at a mounted ISO of the same build to finish the repair offline.
0xC0000102 file corrupt error when repairing or reinstalling Windows
0xC0000102 means a file, or the disk structure under it, is corrupt. Read the file named on screen, run chkdsk on that volume, then replace the file.
Office 0x80070490: the licensing token vanishes on non-persistent VDI
Error 0x80070490 shows up when the Office licensing token does not survive a non-persistent VDI or roaming profile. See the fix that makes it stick.
0x80070490: The Activation Troubleshooter Says the Key Did Not Work
0x80070490 is what the Activation Troubleshooter shows when it cannot apply your key. Learn what it hides underneath and which licence actually works.