Before you begin
Save open work and back up important files. Use instructions for your exact device and software version. If Windows cannot start, see the startup guide.
Work through these checks
0 of 3 complete01Move Steam outside the Program Files folder (eg C:\Games\Steam)
- Move Steam outside the Program Files folder (eg C:\Games\Steam)
What to expect
Check whether the original symptom still occurs.
If it does not helpContinue only if this check applies to your device. Consult its manufacturer if you are unsure.
02Right click on steam.exe and select Run as administrator
- Right click on steam.exe and select Run as administrator
What to expect
Check whether the original symptom still occurs.
If it does not helpContinue only if this check applies to your device. Consult its manufacturer if you are unsure.
03Add Steam as an exception in the antivirus
- Add Steam as an exception in the antivirus
What to expect
Check whether the original symptom still occurs.
If it does not helpContinue only if this check applies to your device. Consult its manufacturer if you are unsure.
Possible causes
- The Steam folder is in a UAC protected folder (eg Program Files)
- Insufficient permissions for Steam/steamapps folder
- The antivirus program blocks the writing of files
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